Just for future reference for anyone who comes across this. The bushings are different than a 2500 or a 1500. In fact the entire differential housing is different. That roll of electrical tape for a bushing made it 2000 miles and I replaced them with polyeurathane bushings for $250 from here... https://www.outfitterdesign.com/h2-f...shing-kit.html They work fantastic and the truck drives so much tighter than stock. You do need to make sure you reinstall the large washers around the large lower bushing otherwise your differential will put a hole in your oil pan. Saw that happen to a poor soul with his brand new duramax swap.