Mine took a shit on my 2002 blazer and now it shifts back and forth from 2wd to 4wd as it pleases... WTF? Anybody knows a quick fix? Is there an aftermarket replacement? is anybody got a used one for sale cheap? Thanks for yur input guys.

Np231.

Are you talking about the shift motor for 233? If so I have one from when I swapped to a 231. PM me if you want it. As far as reliability a manually shifted box will be way better. It can be a pain in the ass to do the shifters though.