I already have an active topic about some engine questions open but I thought I'd open a new thread since I want to know about rear end improvements also.
I'm running a totally stock differential on my C3 behind the 383 stroker and I drove most of last Summer nicely with it until I was able to break the driver's side u-joint which goes between the half shaft and side yoke. I replaced the u-joint with a heavy duty one and I drove a couple of months until something bad happened back there again. This time the u-joint was alive but it had come out of the side yoke clamps somehow. I guess the clamps got damaged or bent when the u-joint broke the first time and I shouldn't have used the same clamps anymore to install the new joint.
I do have some side yoke play on both sides of the diff and I began hearing some slight whine noise from the rear end when letting off the gas at higher speeds. Therefore I am thinking it is time to remove it from the car and fix it or perhaps just get a new diff instead.
I was actually thinking of buying a whole new diff set from Duntov Motors which costs 1499 USD per diff. I thought perhaps replacing the regular ring and pinion in it for the REM coated ones. You can see the parts here: http://www.duntovmotors.com/differentials-63-79.php
Should this diff work behind the Stroker engine if I use it mostly on the street? Is there any point getting one or should I have my old diff rebuilt by the local guys here in Estonia?
I guess I should certainly get the 63-79 Stub Axles they are selling since they should be stronger, also HD Stub Axle Caps and their stronger u-joints.