hey, its KGL

the other day i took my z for its first long rang drive. the results where great with the set up that i have on the car. it pulls really stronge. But on the way back home i started to feel a vibration and a noise when i let off the gas. so i nursed it home and jacked it up the next morning. and i discovered that it was the side bearing in my differetial and if this bearing is going the rest of them probably dont have much life left in them. so i decided to go ahead and change all the bearings in the rear end. and then i discoverd that these arnt very cheap bearings :disappoin . So what i am asking evryone is what kind of up grads can i make. Meaning what other diffs... are out there that i can swap in. i already know i can put in a 280z diff... in but from what i know, the only difference is that its stronger than an r180. the setup on the car is a stage two cam three to two headers, and a L24 block bord thirty over. and i also put 280z valves in my e31 head. I also have a stock four speed and dont plan on changing it any time soon.

I dont realy know what kind of up grad im looking for, but i just want to know evry possible option there is.

Thanks for the help

KGL :

The R-180 diff is more than enough for your current set-up. Pull it and do a rebuild. Bearings, seals and new oil. While your down there replace the diff mount.