I'm keeping my eye out for another rear. I haven't opened mine yet but it seems to have some kind of limited slip. This winter I want to redo all the steering and suspension. I'll check out your thread. If this motor ever goes I thought about 1 4.1 block. Four barrel intake and aftermarket turbo and I tercooler and maybe keeping the factory draw through carb. Or going with a fitech. Still researching. Thought about turbo ls swap too.One thing I would suggest doing is put in a better gear ratio. These engines like more RPM than what the factory setup will give. Helps with the turbo lag and making boost.