I've been using kaaz oil for my kaaz diff....still clunks like a mother. Good for the track, bad for street obviously, and I've been too busy lately to hit any track days. Just wanted to know if anyone with a kaaz diff use other products or additives.

thanks.


ap

 

I ran Redline synthetic with mine and it was a little better.

 

Yep... Redline synthetic (80W-90) actually made my diff completely quiet for about 1000 miles before I heard any clunking.
I screwed up and put some Havoling 85W-140 and totally screwed up my diff. Now my car thinks that the rear end is locking up and the ABS kicks on. Make sure you use high performance recommended weight oil only because Kaaz is strictly track use.

 

Mine clunks like a mother too, mainly after 1500 miles. I've never tried anything else but heard you can use an oil diff additive made by Ford.