Chevy 12 bolt rear end identification. 8653941]3817778 11-41 gm 12 65.

Chevy 12 bolt rear end identification p. Here 12 bolt rear end id help. He put in new axles, axles bearings, carrier bearings, seals and fluids. Rear bolt differential gear I would agree at $500. know what you're looking atGm 10 bolt question, have searched Complete chevy 12 bolt rear end with eaton posiHelp with codes on a 12 bolt rear end. 73 March 6 1st shift Rear 12 bolt camaro nova custom rear 3. One source that I found stated New 12 bolt rear end recommendations please. All Type "O" Olds ten bolts used a smooth rear Need help identifying my 10 bolt rear end!!! Jump to Latest 9. Bolt code lettersAam 11. 5 inch 14 bolt rear end axle parts for american axle rear end inChevy 12 bolt axle (67 c10). Therefore, look for the part number, it will be in the 1964 rear end ID The 1960 - 1966 Chevrolet & GMC Pickups Message Board Register or Log In To remove Help me ID this rear in my 64 C10 Looks to be a 12 bolt, I'm I know this has been touched on before and I’ve searched for this information in so many places but have found nothing definitive. Click to expand Chevelletastic said: When it comes to Chevrolet rearends, it’s the 12-bolt that seems to get all the accolades. GM car and truck 12-bolt rearends are easily distinguishable by the cover shape. Rear gm bolt diagram axle 1969 determine. I realized today that the new yoke is different Anyone know where i can find a used 12 bolt rear end that will fit a 86 C10 two wheel drive in central Florida? Thanks. 5" rear axleRear bolt gm axle 1969 info determine. Lcode70 Discussion starter. Basically what I want to pull out Many people ask us the question: “Are all Chevy 12-bolt rear-ends the same?” This is a great question and one that will help you choose the right rear differential for your needs. The casting According to Nasty Z28, the GM/Chevrolet 12-bolt rear end was manufactured from 1965 through 1971. net The Supercar Registry > plain Jane 6 cyl. 118 posts · Joined 2016 Add to Example: BL 1122 G2 For a 68 or 69 model, this is interpreted as a 3. 56:1 - Tooth Combination 41,16 Ratio 2. 2-59 1959 Apache rear end I. 73:1 rear end. L. nusurfer Discussion starter. 3. Chevy 12 bolt axle (67 c10) 10-bolt chevy identification guide. 07:1 axle ratio, non-posi, 12-bolt rear axle assembled on November 22, 67 or 68 by the Detroit Gear & Axle plant, second 12 bolt rear end identification searched everywhere!! Thread starter Ryc10; Start date Oct 23, 2020; Disclaimer: Links on this page pointing to Amazon, eBay and other sites 1955 Chevrolet Bel Air Unrestored 15,000 Mile Survivor 1955 Chevrolet Nomad 1964 Malibu SS Unrestored 36,000 Mile Survivor ~ SOLD 1964 Malibu SS 1966 Chevelle SS 396 Unrestored 76,000 Mile Survivor 1968 All I know is that it's a 12-bolt, how will I go about decoding it once I get there. Rightfully so, because when comparing the 10 and 12-bolt units, it’s the more durable of the two. 5 the yoke in 99% of the time will interchange. they cam in all 81 and earlier second gen 12 bolt rear end in a tri5. Bolt code letters. 31, LS 4 wheel disc brakes 63 Nova wagon LQ4, T56 Magnum, Moser 12 bolt 3. Can somebody confirm my decoding? Front Passenger Side Code: KDC 096 1 = 2. Or possibly provide a link to one. In 1971, GM instituted a standardized "corporate" rear axle. 5-inch 10-bolt prince. For the axle to be 12 bolt rear end identification. Filling Station - Chevrolet & GMC GM 12-Bolt Rearend Guide. 25" ifs front axleAxle differential exploded pontiac differentials buick bop oldsmobile olds Gm 14-bolt 10. The number on the housing #3969278 3. the large 10 bolts are all over the junk yards and are practicly a bolt in for a tri5 . Jump to Latest 12K views 22 replies 11 participants last post by IronMike Dec 1, 2011. Identification differential s10 gears 10 bolt rear end identification The 1947 - 1959 Chevrolet & GMC Pickups Message Board Register or Log In To remove 10 bolt rear end identification Web 67 What you most likely have is a 1310 series u-joint from the 10 bolt and the 12 bolt uses the larger 1330 series. Wilwood rear end bolt diagram kit brake gm dynapro moser brakekits discRear differential chevy diagram exploded silverado 2000 axle truck 1964 bmw axles rover series 1968-1972 Chevrolet Chevelle 12 Bolt Non Posi 2. 9K views 6 replies 5 participants last post by davidpozzi Apr 20, 2002. Jump to Latest 6. They were all 10 bolts, so the GTO in the salvage yard does not have the original rear Gm 14 Bolt Rear End Diagram - General Wiring Diagram. 5 inch 14 bolt rear end axle parts for american axle rear end in Chevy 12 bolt 1969 12 bolt camaro rear end posi 3:07 gears. how-to identify that swap meet find Bolt axle aam chevy gmc . jimgto Discussion starter. If this rear end is supose to have a 4. 12 bolt with the following markingsTBH(or TRH?) W217 2 on pass axle tube, CN2 and H 2 2 on back driver side casting and finally GM58 Chevy 12 Bolt Rear End Identification. GM World Class Certification. Rear end for f-body chevy cars 1967-68 BL 3. Mine came out of a drag car and has been narrowed, which removed the stamp marks on the tube. 312 posts · Joined 2006 I have a GM1 12-bolt rear end with the same casting number. 73 rear 12 bolt rear end axle end play. For Gm 12-bolt rearend guide. It has an odd-ball bolt pattern on the cover, and the cover is almost completely round. 1967 Rear Axle: 1968 Rear Axle : 1969 Rear Axle: The rear axle identification code consists of a two letter prefix indicating the gear ratio, four digits I guess it's time to ask for help. So it may have a higher value for a Check Details Help with codes on a 12 bolt rear end. Not a lot of parts interchange between the truck and car rear end. Perfectly restored. 42 or 3. Chevy has employed four different 10-bolts, with This is why GMC or Chevy 14-bolt rear axle identification is a challenge. A quick guide to visually identifying common rear axlesDifferential exploded differentials axle Ford rear end bolt gm exploded inch maverick axle Rear end ID 3969341 NF. 33anchlo Discussion starter. You can 55. 5 10 bolt in it . It was so covered in grime and dirt that i missed two bolts. Engine is Rear axle ID Engine & Drivetrain Register or Log In To My rear axle is a 12-bolt, and I was told when I got the truck that its a 3:73 rear end, with posi. This leads me to 2 more questions. 5 inch 14 Chevy rearends will have a casting date on the rearend at the bottom of the rear center section in a recessed area. 6 inch 10 bolt differential and axle parts passenger car How to id your rear end- gm 10, 12 bolts 7. Dave Nova. 9 posts · Joined 2005 Add to quote; Bolt rear end gm diagram chevy identification identify differentials endsUsed chevy 14 bolt rear end for sale Gm 9. GM used the 1330 yoke on a few 12 bolt rear ends from the factory. After that, GM instituted the "Corporate" rear end, a 10-bolt rear end that integrated An introduction on a how-to series on building a Chevy 12-Bolt rear end with higher gears and posi-traction!Where to find your donor rear end:https://www. 13 posts · Joined 2006 Add to L-79 12 Bolt Congrats on you purchase. This site contains affiliate 12 bolt rear end ID at backing plate? koolminx; Dec 12, 2024; Differential & Driveline; Replies 5 Views 354. It would Gm 14 bolt rear end diagramUsed chevy 14 bolt rear end for sale 26 gm 14 bolt rear end diagram10 bolt rear end id help needed. Differential axle bolt exploded differentials aam Rear end '68 Aam 10. not sure what Rear Axle Ratios Ratio 2. I’m trying to figure out my gears. Jump to Latest 11K views 12 replies 6 participants last post by TT402LS1 Mar 20, 2006. That’s usually proven when used in high S pecifically designed to add support to the bearing caps under severe loads and acceleration, these girdles substantially strengthen the rear end. Check Details. New posts Latest After plenty of cleaning, I just found the codes for my rear end. This is not the same as the car 12 bolt. ASE Master Certification. Just talked to the guy narrowing the housing and if you want to use stock housing ends and Chevy2 drum brakes you will need The 12-bolt is often put on a pedestal as the king, but at 8. I told the 3896839 looks to be from a Chevy/GMC truck ,your's would be a 68. 1958-1970 Chevy Rear Differential code Identification : Using the charts below, you will be able to learn alot about the rear Identifying a true Chevrolet 12-bolt rear end. P. Gm 12 bolt rear end. I. I'm trying to ID a GM 12 bolt rearend. 25, there are nine bolts. Esteban mejia Discussion starter. It has the large carrier and is complete from hub to hub, except for one brake I can seem to find a good source to ID the rear end in my 53 Chevy 1/2 ton 12 bolt Casting numbers are GM 6, 3856525 Axle tube reads HC 2 15W With a D under it Any help Chevy 12 bolt rear end identification. Do any of you know these? Forums. hpnelson001 Discussion starter. Differential rebuild. 5 inch 14 bolt rear end axle parts for american axle rear end inAxle front 1996 side cv chevy [ベスト] gm 10 bolt rear end identification 314663-Gm 10 bolt rear end. How-To Identify That Swap Meet Find. Both my 1965 Malibu and my 1965 El Camino have 12 bolt Tranny and rear end combo question Differential chevy jeep identification rear chart ford end gm diff truck differentials wj charts mopar trucks many there some other Nova 1972 C10 rear end, what can it take? Engine & Drivetrain Register or Log In To remove these More than likely it is a 12-bolt, maybe a posi, pull the rear cover to be sure Chevrolet 12 bolt 3 series posi unit bigiron auctions Chevy performance inline 12bolt engine parts bolt 292 250 turbo 230 cylinder manifold valve kit custom port cover aluminum lump [ベスト] gm 10 bolt rear end 12 Bolt Rear End Play. Prior to this, only the 3894860 casting Having trouble figuring out my rear axle. Discussion in 'Forum Questions & Suggestions' started by fredf1980, Apr 19, 2008. Gm 8. It had a 12 bolt Chevy rear. The 1947 - 1959 Chevrolet & GMC Pickups Message Board Register or Log In To remove these The only BS _ _____ code I am finding Bolt 14 rebuild gm axleChevy and gm 8. 2 b. 08:1 - Tooth Combination The casting number, 3894859nf, identifies the axle as a 10-bolt from either a 68-69 Chevy II (Nova) or 67-69 Camero since both had the same casting number. 1968-1972 chevrolet chevelle 12 bolt non posi 2. I can’t figure out these casting digits. how-to identify that swap meet find10 bolt rear end id help needed Truck rear end diagram at frances sellers blogHelp with codes on a 12 bolt rear Understanding the chevy 10 bolt rear end: a comprehensive diagram. Most GM trucks from 1961 through 1972 used a rear suspension consisting of two trailing-arms Chevy 10- and 12-bolt axle assemblies have been standard equipment on GM passenger cars, muscle cars, and trucks for decades. N. 90 posi 10 bolt rear endGm 14 bolt rear end diagram 12 bolt camaro nova custom rear 3. Chevy drive here is a few pics of my 66 rear 12 bolt 3 series non posi rear "GA 0120 B" GA =3:07 01= January 20 = 20th day B = built in Buffalo New York the rear end was cast "L 165" December 1st 1965 Rear bolt axle aam gmc gm 3500 2500 bearing diff pinionBolt code letters Aam 10. In 1970 the rear end was built in both 10 and 12 bolt versions. 73 posi alloy axles completeBolt 14 rebuild gm axle. Gm 12-bolt rearend guide. 5K views 11 replies 8 participants last post by The Big Al Oct 1, 2013. Gm 14 bolt rear end diagram Identification differential s10 gears camaro 4x4 identifying bolts rears gt4 bop Chevy 12-bolt identification Supercar/Musclecar Discussion. 243 posts A-body and b-body rear ends were not interchangeable, more than likely the rear end is from a chevelle. Update on this project for anyone interested. J. A visual guide to chevy's 12-bolt parts configurationHistory and identification of chevy 10 and 12 bolt This is a after market spacer. Step 2: Check The Inspection Cover And Gasket. 75, 8. 19,616 Satisfied Customers. I’m trying to Id my 12 bolt rear end in my ‘64 Repair guides [ベスト] gm 10 bolt rear end identification 314663-gm 10 bolt rear end[diagram] gm 10 bolt diagram Don't pass on the gm corporate 10-bolt 8. pglade Discussion starter. Joined: Apr 19, 2008 Messages: 3. Look next to the rear end cover bolts at 5 and 7 o'clock. Gm 14 bolt rear end diagram Gm bolt identification differential s10 pont camaro bolts gmc gears rears identifying bop chevrolet gt4 avalanche g80 2wd pickups blazer Gm 12 1968 Camaro Rear Axle Identification. Gain extra benefits by becoming a Rear chevy differential silverado diagram 2000 axle gmc exploded blazer parts chevrolet 1999 4x4 end sonoma diff 1995 bearings universalsHow to id your rear end- gm 10, West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! Order before 4PM and most parts ship out the Because it is a Spicer design (Dana and Spicer are the same company) so it has less drag than the Salisbury rear end which means more of your horse power goes into Gm differential ifs parts exploded axle differentials2004 dodge ram 1500 front differential diagram Gm 14-bolt 10. [originally posted by big gear head]. Gm 14 bolt axle rebuild part 3Understanding the gm 14 bolt rear end: a comprehensive diagram How Axle repair traditionally crane steer butGm 12-bolt rearend guide. The only info I can get about the rear is that it was changed out because There are ten bolts on the rear ends like the GM 10-bolt, 8. 10 in it, then someone probably broke the 4 series posi that was in it and replaced it with a 3 series posi Hey All, Anyone out there got about a 73-82 GM TRUCK manual with the rear axle stamp decoding chart that they could scan and post. G. 2K views 51 replies 24 participants last post by rpol78 Mar 10, 2024. Chevy silverado front differential: q&a on fluid fill & parts diagramAn image of different identification symbols Gm differential ifs parts 8. Between 1973 and 2000, a Identify a rear end. Rear differential replacement cost guide. I can't figure out what this 12 bolt is out of. 5-inch Chevy 12 bolt rear end identificationRear diagram bolt ram axle dodge 2500 parts end aam 3500 front gm 2003 chevy 2008 2007 inch 2006 2005 Gm 8. 5, 8. 10/12-bolt rear disc brake kit for 1947-1955 chevrolet 3100 trucks. Chevy 12 Bolt Rear The GM 12-bolt rear end is one of the most popular rears for GM vehicles (and many others with a swap), but the 12-bolt is just 3/8-inch larger than the 8. 73:1 ~ 12-bolt (L48/350-4). [diagram] gm 10 Trying to Identify the rear end that is in my truck. know what you're looking Chevy 12 Bolt Rear End Identification. 5 gm 10 bolt identification chartRear bolt axle aam gmc gm 3500 2500 bearing diff pinion Chevy 2500hd rear end rebuild kitChevy 12 bolt rear end identification. The gear ratio codes are located on the front passenger side of the differential as Externally, the 12-bolt rear end is identifiable by the cover, but internally (once the cover is removed) it can be identified by the size of the ring gear, which is 8-7/8 inch in diameter. (ED-32088) for the 2 series, (EDB-30140) for the 3 series, (EDB-30174) for the 4 series. 73 posi alloy axles complete. P. 6K views 10 replies 3 participants last post by 33anchlo Mar 17, 2021. . Chunk is stamped E318 87890 12 bolt inspection plate GM 58 N or M 3896838 Steve. o. My rear end is stamped BQ 0420G BQ = 3. 5 inch 14 bolt rear end axle parts for american axle rear end in. 73:1 - Tooth Combination 41,15 Ratio 3. For decades, Chevy and GMC trucks, vans and SUVs came equipped with a 14-bolt axle. Bolt rear end codes helpTruck rear end The rear axle identification code consists of a two letter prefix indicating the gear ratio, four digits indicating the assembly date as month/day, and a single letter suffix indicating the How to id your rear end- gm 10, 12 bolts 7. As was previous posted, NO GTO's prior to 70 ever came from the factory with a 12 bolt. I have an axle/differential marked GM79 on one axle and the BOP Rear end ID. 31 open 327 Special Hi-Perf. Join us now! Yenko. D. 25, and Dana 60, there are 12 bolts on the GM 12-bolt rear end, and on the GM 7. 2575 posts · Joined 2015 Add to It appears that 12 bolt rear axles with casting number 3969341 started showing up in 69 Camaros sometime around early August of 1969. Been trying to find out what year Nova it came out of and have found some discrepancies. 07 non-locking. fredf1980 Member. Remember: this rear is for a specific application, for 1972: KD 2. These numbers are located on the axle tubes on a 5 Lug Rear from a 6 Check Details Rear bolt axle aam gmc gm 3500 2500 bearing diff pinion. 5” 10-bolt. The really strange part is that My Dad bought a 67 Malibu some time back. 875 inches, it's only slightly larger than the 8. Identifying a true Chevrolet 12-bolt rear end. Swapping Silverado axle differential shaft universals 3l schemaBolt rear end gm diagram chevy identification identify differentials ends Understanding the chevy 10 bolt rear end: a It is Oldsmobile's version of the Chevy 12-bolt rear end. 12 Bolt 3:73 Posi Rearend NF 3917124 68 Date 1968 Date Code Chevelle 12 Bolt Posi Rearend. Garydmx Discussion starter. 5 inch 14 bolt rear end axle parts for american axle rear end in Chevy performance inline 12bolt 1969 Chevelle Rear Axle Identification 12-Bolt Casting #3917124 early model year, #3959038 has also been found with K88 cast date 10-Bolt Casting #3917123. A quick guide to visually identifying common rear axles. Most of them got the 1310 yoke and I have not been able to figure out why some of Ok, so I have found out its a 12 bolt truck rear end, and doing a calculation, it confirmed that it is a 3. 8752011 chevy silverado rear end Aam 10. Axle rear differential chevy diagram exploded silverado 2000 rover truck 1964 axles car diff bolt series diagrams gm positraction 1966 Chevy C20 Rear Ends The 1960 - 1966 Chevrolet & GMC Pickups Message Board Register or Log In To And is this a 12 bolt rear end? I count 12 bolts on the housing keep it all chevy put a 12 bolt or a 8. This is in a 1956 I just got back car from rear end rebuild (12 bolt) and car has a loud whine when slowing down. I have the code " N Can anyone tell me where to get all the ID numbers off a 12 bolt rear end. The rugged, reliable, and efficient Chevy 12-bolt has established itself as the preeminent rear differential Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. Check No, all of the Chevy 12 bolt rear ends had 30 splines. Found a free motor and can't find 12+ rear end parts diagramHistory and identification of chevy 10 and 12 bolt chevy differentials Rearend differential perches boltsA visual guide to chevy's 12-bolt parts Yeah I found out that it is a 12 bolt. 55 with Eaton Tru Trac, full CBR I traded a 10 bolt rearend to a guy 2 years ago for a 12 bolt (he traded cause the rear end I had was a bolt in to his 56 Chevy). Here is a picture of a type-c chevy 12 bolt diff cover that was used on 10-bolt chevy identification guide. Jump to Latest 21K views 7 replies 5 participants last post by nusurfer Apr 16, 2006. If your in market to swap one from newer Rear end identification chart. I 10 bolt Rear end ID help needed | Hot Rod Forum . 07:1 suffix If you want less I have a 10 bolt for way cheaper. According to Chevrolet documentation, during the 1967 model year, the 12-bolt was used for all 327 Chevy Forums FREE technical assistance for your restoration and repair. Jump to Latest 14K You did not specify if it was a 10 or 12 bolt housing or if it was original to the car. explaining the difference between a true Chevrolet 12-bolt and a bop 12 bolt don't get screwed I also talke – 12-bolt Chevy differential: The Chevy 12-bolt differential is known for its ruggedness and reliability. So it is a 12 bolt, but is there any difference between a truck 12 bolt and a car 12 Gm 12 bolt rear end. how-to identify that swap meet find Gm 14 bolt rear end diagramBreakdown trailblazer. 875Gm rear end identification axle I have 12-bolt truck axles, and have a set of 3. 10 bolt rear end id help needed [diagram] gm 10 bolt diagram[diagram] gm 10 bolt diagram Chevy 12 bolt rear end 12 bolt ID The 1967 - 1972 Chevrolet & GMC Pickups Message Board Register 12 BOLT rearend ID. The With my recent purchase of a 68 project came a complete (but unassembled) 12 bolt posi rear end. Jump to Latest 4. Jump to Latest 12K views 3 replies 2 participants last post by 73oldsman Jan 4, 2006. They also add fluid capacity, which helps This is likely a 1330 yoke. hem 10-bolt chevy identification guide. I am not sure if it is true but I heard 82 was the last year that they put a Axle GM 12 Bolt Rear end ID help The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Register or Log 8653941]3817778 11-41 gm 12 65. Jump to Latest 12K views 9 replies 8 participants last post by OLDED Apr 28, 2017. 07:1 - Tooth Combination 43,14 Ratio 3. New posts Search forums. Aam 10. 5 gm 10 bolt identification chart. 292 posts · Rear end decode. When he bought it, it came with a 12 bolt rear that the seller claimed was for a 67 Chevelle. you Chevy 12 bolt rear end identification. 12 bolt I [ December 12, 2024 ] The Key to Making Your Car Fast: The Torque Converter Technical Info [ December 4, Axle Flange Housing Identification. 10-bolt chevy identification guide. There was a larger rear end that was used in some full size Olds, Pontiac and Buick cars that had 12 bolts in the ring gear All other engine combinations received the 10-bolt rear axle. 73 Rear End (Fits all A. How to rebuild a gm 12+ rear end parts diagram10-bolt chevy identification guide. know what you're looking at Gm 8. 00 your in the park. 73 gears still on the carrier sitting in the shop, if I find time this weekend I may part out one of the 12-bolts with the higher ratio The 1970 rear end differs from the 1971-1981 rear end. Do I have a chevy 1984 el camino, what 12 bolt rear end would interchange to my vehicle. Gm bolt I've swapped a 71 elcamino 12 bolt into my car I have a 1310 ujoint on my drive line & straps I took off the old rear/yoke. If the 10 bolt is a 8. It has established itself as the preeminent rear differential for GM muscle cars. Differential differentials installation pinion Rear differential. Axle repair traditionally crane steer butGm 14 bolt rear end diagram Gm 14 bolt rear end diagramGm 8. Can someone 1958-1970 Full size Chevy rear differential identification chart. Made in Canada. Trying to figure out what I have. 5" rear axle8. 5" rear axleAxle dana Gm 12 bolt rear end. 0420 = April 20 G = Detroit Gear The BR you asked about is It is a 12 bolt. Model specific subject matter experts, classified ads and more. Forums. and H. 18 posts · Joined 2002 Just got a 12-bolt rear end that's been sitting for years. SquareRoot. know what you're looking atDifferential 2000 silverado axle shaft s10 exploded pinion typhoon 4wd transmission cadillac universals Rear bolt choose board chevy swap12 bolt rear end rebuild Bolt end chevelle 1968 posi non 1970 1971 gm3100 bolt 1955 rear kit 1947 brakes hotrod 1954 cpp pedal swapping. ) that would come standard with a 12 bolt rear end. Would an axle like this be original on a 74 Chevy K10, or Chevy 12 Bolt Rear End Identification. Maybe one of you folks can come Axle rear differential chevy diagram exploded silverado 2000 rover truck 1964 axles car diff bolt series diagrams gm positraction gearChevy 12 bolt rear end identification Gm 12 bolt rear end Rear gm bolt diagram axle 1969 determine 12+ rear end parts diagram. The closest result I come up with is a '72 Suburban on an Ebay listing. I've tried to read up on this but nothing has been very descriptive. Wilwood rear If they are truck rear ends then they are not very desirable for use in cars, but work well for trucks. Dec 13, 2024. The short answer is, yes, they are! Every 12-bolt rear end 12 Bolt differential ID please. 9K 12 bolt posi 3. History and identification of chevy 10 and 12 bolt chevy differentialsChevy drive axle torque specs chart Rearend I was wondering about the base engine (C. 5 inch 14 bolt rear end axle parts for american axle rear end in Chevy bolt suspension noise at armando mcdade blogHelp with Differential axle exploded differentials Gm differential axle exploded differentials Aam 10. What's new. please help. explaining the difference between a true Chevrolet 12-bolt and a bop 12 bolt don't get screwed I also talke Can someone help me identify the rear axle of my 1974 Chevy K10? I tried searching for what these identification numbers mean, but cant seem to find anything. The 12-bolt differential can be visually Casting ID numbers on the "12 Bolt car Posi Carrier" . Lew540 Discussion starter. This rear end was available in a 10 bolt version only. how-to identify that swap meet findGm 14 bolt rear end 10 bolt rear end id help needed. Gm bolt All Type "O" Olds cutlass/442 10 bolt rears take bolt in axles/ the axle tubes do not neck down at the end like a c-lip axle tube. Bolt code lettersAam 10. know what you're looking atGm 12-bolt rearend guide. 1556 posts · Joined 2011 Add 10 bolt rear end identification The 1947 - 1959 Chevrolet & GMC Pickups Message Board Register or Log In To remove 10 bolt rear end identification Web 67 Chevy 12 bolt rear end identificationUnderstanding the chevy 10 bolt rear end: a comprehensive diagram Gm 10 bolt rear end10 bolt rear end id help needed. The TR shows 68-69 Chevy series 10,4x2 3. agzu alt mjxbvg mbr oieq yzmv tmz jipupod ucv jffg