i believe i am having trouble with the rear in my 97. i put it in reverse and it produced a loud clank sound. once i drove forward i began to get an intermitent grinding sound. almost like when 4 wheel drive doesnt engage properly. after unhooking driveshaft i find the yolk to have roughly 1/4 inch of play but not pinion to ring gear. it is in the clusters. i know i will end up rebuilding it but any info is helpful. dont know the gear ratio but truck is sitting on 36 inch tires. thanks for any help

 

Welcome to the Tahoe forum. Someone here should be able to lend a hand.