I've searched and searched on the net for this answer, this is my last resort before professional help. anyways...
I blew the ring and pinion gears up in my truck a few weeks ago, I have the replacement parts, I rebuilt the whole thing, bearings and all. Last night I finished putting it all together. My problem is getting contact like they show in the little picture. It's really close, but not quite. Everything I read on the net says I have to use a dial indicator to measure backlash and pinion depth, then shim them. The thing is the total overhaul hkit I bought has no shime. So I assumed the design of this rear end didnt need them. I looked online for hours trying to find out if thats what i'm missing, but cant find specific info on my rear end.
It's a chevy 7.5" out of a '89 S-10 Blazer. Does anyone know if chevy 7.5" rear ends use shims? It has two large ones to the left and right of the ring gear carrier, so I dont see how I could even adjust backlash if I needed to. The only thing I can think is mabye my Pinion gear needs shims. And how the hell do I set preload? it calls for about 2ft lbs, but the big nut on the end of the pinion takes way more than that to tighten?
Anyone know anything? thanks..