I broke the pin bolt on my carrier trying to install 4.88 and I think I will just torch out the pin and get a used carrier. I found one from a 90's cherokee the guy thinks it a 27 spline that had 3.55 gears. My jeep is 98, is it a 30 or 27 spline? ( I put the cover back on so I could drive it and forgot to look) also dose any one a any reason that this might not work?