Can you put a 4 channel rear on a car that's 3 channel? I have a 94Z which is 3 channel, I believe (no sensors on the rear wheels.)? I have broken teeth on the rear gear and I want to change the rear for a lot of reasons, but can't afford a 12 bolt. I have a chance to buy a whole third member w/3.42's from a 2002 for 250$ or just a Zexel posi with 3.23's for 75$ from a 2002. Both are 4 channel. Will either of these work in my car?

 

Anyone have any ideas??