Hey there folks. Well, being fully in love with my 81 manual EVERYTHING 240D as i am, I've been doing everything in my budget to bring it back to its former glory. Ive been trying to reduce the "rubber band" effect when you let off the accelerator, decelerate suddenly or miss a shift into second, etc. I've replaced both engine mounts, the transmission mount, the driveshaft center bearing and the front flex disk. Although its tightened it up considerably, I still have an annoying (atleast to me) amount of rubbery feeling in the driveline somewhere. When i changed the front flex disc and driveshaft bearing the back flex disk looked fine. oh yeah, new timing chain about 5k ago.

what next? rear diff? the driveshafts?

any insight will be welcomed. thanks.