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Author Topic:   GM axles
Eric Pattridge
Dirt Full Roller

Total posts: 48
posted August 04, 2004 11:47 AM  
I bent an axle the other night. My question is I took the axle out, but it does not have c clips. i believe it is a bolt in type axle. Not sure what year the housing is. It is in a 1985 monte carlo, but I dont believe the rear end is from this car. All the control arms bolt to it and everything. How can I find out what info on this rearend housing to see what axles I need to look for in the junkyard? Thanks.

iowatoolman
Dirt Freak

Total posts: 369
posted August 04, 2004 10:11 PM  
what does the housing look like ???

is it a 9 inch

Eric Pattridge
Dirt Full Roller

Total posts: 48
posted August 05, 2004 09:36 AM  
it's a gm housing. We arent allowed to use a 9 inch. I wish we could. The axles are 28 spline.

Eric Pattridge
Dirt Full Roller

Total posts: 48
posted August 05, 2004 09:37 AM  
forgot to mention it is a 10 bolt. I dont think it is a 7.5 inch.

fast40
Dirt Roller

Total posts: 10
posted August 05, 2004 12:47 PM  
Does it have a spool or stock carrier? Is there a groove at the end of the axle where the C clip usually fits? If so it could have been fitted at some time with a C Clip eliminator kit which turns it in to a bolt in axle.

iowatoolman
Dirt Freak

Total posts: 369
posted August 05, 2004 12:49 PM  
if it has 28 splines than it is a 7.5 gm 10 bolt 88 and newer the older ones had only 26 splines it probably has c-clip eliminators sometimes you have to cut the c-clip part off the axle for it to work

powerglides
Dirt Freak

Total posts: 374
posted August 11, 2004 09:21 AM  
The 7.5 GM rearend out of coil cars from 1978 up had 26 splines and c clips. The 7.625 (82 and up Camaro) rearends had 28 splines and c clips. GM 10 bolt passenger rears through the 70's (pre Metric) had 28 splines some had c clips some did not. The rear you have is probably a 70'S 8.5 with non c clip type axles. Hard to find though.

gahainsey
Dirt Maniac

Total posts: 113
posted August 12, 2004 06:08 AM  
71-77 buick olds pontiac uses the bolt in axle. Also some chevy impala taxis from 77 up. Be sure to make a new retainer plate out of 1/4 steel or you will have lots of problems!

rico 08
Dirt Forum Champ
Total posts: 1139
posted August 12, 2004 06:23 AM  
Also the pre 70' 10 bolts(8.2)had bolt in axles.

juni
Dirt Maniac

Total posts: 184
posted August 12, 2004 08:27 AM  
WE used a 71 and 72 bop( buick,olds,pont.)they where out cutl,lemans,skylark they had 8.1/2 ring and pinion and bolt in axles . You can order one from moser. The rear end bolted in on the bottom mounts but we had to shortten the upper arms . So look at your upper arms and see if they have ben cut or the holes have been re drilled that is a dead give away.

Eric Pattridge
Dirt Full Roller

Total posts: 48
posted August 14, 2004 01:02 PM  
Thanks for all the input. I believe I did find an axle for this rear end. It is from a 72 el camino. It was hard to find. I'm going to put it all together and race the car as is with this rear end. BUT in the meantime I am going to set up a complete rear end that is for my car 85 Monte Carlo or metric equivelent. During this quest for an axle I have noticed that the metric ones are easily found...lol. I'll even use c clip eliminators. So when the present rear end gets damaged again all I'll have to do is swap rear ends. Short down time. But I went through all the trouble to get an axle I'm going to run the *%#@ out of this one till it breaks...lol. Thanks for the help.

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