Originally Posted by vecchio Lupo
Friends, I have an 81' R100 with a 99k+ miles on the OE Drum brake 37/11 final drive. It has alot of drive lash and the diff is shot. Will a 32/11 from a 74 R90/6 bolt on without drama?
let me know asap as it's on ebay and I don't want to lose it.
You can use any 70-84 twin shock rear drive as long as it has the brake pivot hole in it. Not all 81-84 rear drives had it.