Time to rebuild diff

I'd stick with a Ford rebuild kit, but that's all i've ever used and i've had good luck with'em. Do a search here on how to modify the clutch packs...basically the stock setup is something like clutch/steel/steel/clutch etc, and the modification is clutch/steel/clutch/steel etc. You have to mic the thickness of each side to make sure you end up with the same thickness on each side and shim them right. You end up with more clutches than the stock setup has and the diff will lock up tighter and more often. We did this on my rear end with all used clutches from another stock diff and even with used wore out clutches my rear end never one wheel peels. I say do a search because i had to get help doing mine and i may be leaving out details..