A 67-69 Camaro 12 bolt axle is 1/2 inch shorter than a 70 Camaro Chevelle if its a Car rear. Also if its a 30sp truck a 69 axle is shorter than a 70 but not quite that much.Someone has changed the rear end on my 57 Truck to a 12 Bolt GM. The problem I have is that one of the axles sticks out about 1/2" further than the other. This is keeping the brake drum from covering the entire brake shoe. Any suggestions?
On a 12 bolt I dont think so on the respline, You need to figure out what you have to start with, li8ke how wide and what bolt circle.Well, I don't think they are switched, the one side fits fine. It has positrac so I'm assuming it's a truck rear end. I spoke with a friend of mine and he referred me to a performance shop close to me that said they could shorten and re-spline the shaft. Thanks for the responses and the suspension chart is just what I needed. If I can figure out which one I have maybe it will be cheaper to just pick up a used axle.
1971 will be 5-bolt, unless it's from a 4WD truck, like Gary mentioned above. If you go junk yard searching, it would be a good idea to take the correct length axle with you, or at least write down all its dimensions.Ok, so I'll look for an axle for a 30 spline 68-71 GM 12 Bolt 8 7/8 truck differential. I am out of town this coming week but will pull it out and get to looking. Thanks for all the help!
Well sir you are correct on the difference between 69 and 70 on axles, but did you know that 71-79 four wheel drive 12 bolts use the same axle shafts as a 70 two wheel drive. We put 74 spindles and axles in my brother in laws 70, I then used his primo 6 luggers in my 72 Blazer. It is my recall that 12 bolt axles are tapered.5 lug or 6 lug? 1970 was the last year for 6 lugs on C-10 trucks, but the 1970 axles were a little longer than 1969 and earlier. Could be all you need is a 69 axle. But if your guy can shorten and re-spline, that's great. I don't think the splined ends are tapered like they are on some 9" Fords, so shortening shouldn't be a problem. But, hey, I've been wrong before!