Rearend alignment

[dave-68]

Back in it and runing through all the runing gear and checking alignment and torque after the truck was basically slapped together after the body & paint.

So, what's a good method for aligning the rear axle in the frame, good reference points, straight edge on this, string lines on that, type of thing. thanks

[dave-68]

I did some more searching and found the string method. Pretty straight forward...(that was bad).

http://www.circletrack.com/techartic...ent/index.html

[BMERDOC]

Ive been working in an Alignment thread (its gathered some dust recently). Rear Thrust has been a question. Since there is no adjustment in the rear you are pretty much stuck with what you have. You could use a double adjustable panard rod to tweak it side to side but I'm not crazy about putting your suspension in a bind to straighten it. You could also knock the rivets out of the trailing arm crossmember and straighten out thrust by elongating the frame holes and bolting it back in. Im not sure how much you can gain by doing this. If you are just finishing up and will be getting an alignment they should be able to tell you how outta whack it is.

[dave-68]

BMERDOC - thanks for the reply. I don't think it's that out of whack (didn't get into yet), but figured I could get it as close as possible using the slop in the existing holes. It may be fine. I just wasn't sure how to check it. Thanks again Look forward to your alignment thread.

[pat 70/71]

You could measure from a given point on the chassis to a given point on the rear end ( triangulation ) both sides, and this will show that your more than likely 5/16" plus or minus on the chassis to diff (just like gm set them up when new) I cut my 71 down from long to short bed and was shocked when I measured the original frame and it was 5/16" off. Not a pro just a concerned owner! cheers, Pat

[dave-68]

5/16" was GM factory spec? That sounds huge. I should be able to do better than that. Thanks for the info and the tip.
Posted via Mobile Device