I want to install a 3" lift kit and 33" tires on my '89 Blazer S10. I was wondering if I would have to get a new rear end to turn the wheels, or if the stock rear end will hold up fine?

 

It'll hold up fine. Even if you lock it you should be ok with 33s. If youre getting into some serious rock crawling you might be getting into upgrade territory..

 

Thanks for the info.