Hey guys, so I saved up a little cash to buy my first high priced items for my 86 project. I figured I would start by rebuilding the rear end. I was going to buy the 3.73 rebuild kit from LRS but then started looking at the 31 spline kits. I'm still not sure what route I will be taking the motor as I keep going back and forth from just a rebuilt 5.0 with some gt4os and explorer manifold to forced induction. Either way it will be kept street worthy with the occasional track run. My question is, does anybody know the safe limits of the 28 spline rear ends? I am a bit of an overkill kind of guy but I really don't want to spend the cash if not necessary. I just want whatever I put in to last. Any advice will help. Thanks