Re: Differential choices
What gears are in the front end? Factory gears (which I thought were 3.42's) or have you changed them to 3.73's already? Because if you are changing gear ratios, you've got to do BOTH ends (its not optional).
So, if this is a ratio change, you've got to plan on doing the front end of the truck also (which is an additional cost to consider).
I don't know that you'll have any major problems with the locker. It will click or pop (as it ratchets), and may make the inside tire "hop" in turns. And it may change your handling characteristics (it may "push" more than it used to). My personal preference is for a limited slip, like a Zexel Torsen or a Detroit True-Trac (their part number 912A557). But thats just my opinion.
Also, don't forget that you can get the 8.5" 10 bolt rear as a factory fit rear (correct widths, spring perches, everything). It was available in the S10 platform in any truck with the 4.3l V6 & 5 speed manual (be warned: 2wd, std 4x4, & ZR2 4x4 packages are all different widths, you'd want the std 4x4 width). I think that availability started in 95 or 96. It is certainly a more heavy duty rear than the 7.625" 10 bolt could ever hope to be. If you wanted to use the Detroit True-Trac on that rear it'd be Part # 913A481.
'Dreamin'