I have a 64 Chevrolet SWB stepside on the rear Axle Tube i have found "WA 318" I know it is a 373:1 i want to know how to tell if it is posi or not? Do i need to drop the rear Diff. pan? if so what am i looking for? Thanks for the help.
Jack up the rear and place on jack stands. Rotate the left rear wheel. Is the right side rotating in the same direction ?? Posi ! Another way is to get out in the boonies and do a burn out. Both rear tires leave rubber ? Posi ! Only the right side ? non-posi.. Val
well val, the lil burnout deal doesnt always work, i thought mine was a posi trac rearend to at first cuz everytime i do a burnout it will leave a dam good set of posi marks but when i jack the rear up and spin the left rear, the right rear says otherwise
Then it could have a limited slip rear diff. Not locked until you get on it. It wasn't factory if it has it.
I did Val's burn out test Sure as hell i had posi and then snap went the axle DOH!!! Kilroy was here!!!!!
that sucks hotrodkilroy, the axle actually snapped? or did someone weld the gears and the weld broke?
Yup it snapped broke along the shaft. Thats some serious torgue. but the sahft was cheaper that the posi. Kilroy was here!!!!
