7260 to 7290 conversion

OK. Thanks for the help everyone. I guess I'll stick with the 7260 stuff for now and spend money elsewhere if it's not entirely needed. It's not a race car or anything, just a performance driver with a nicely warmed over 318 and rebuilt 904 with all the right stuff, red clutches, kolene steels, shift kit, PTC converter, yada yada. It was just a thought I had in my mind while I was shopping for new U-joints...:)