Finally have a spell of warmer weather (compared to -24) and its got me thinking about spring so I'm trying to start early from wear I left off, with this terrible vibration.
After installing a TKO 600 I'm having sort of droaning vibration in the rear which eally seems to shake at 100 Km and up. It's always kind of there depending on speed. Coasted in neutral at different speeds and still there. The tranny went in smooth with no problems, its lined right and sits at proper angle. Spohn x member with driveshaft loop and poly bushings. The drive shaft is stock, I've heard that these drivshafts are 1.5" too long for tremec applications. Could this be it? Also on my pinion yoke on the diff. seems to be missing a weight. I have some with weights and some without. Should I change this? Should I look for a 4th gen driveshaft? Could 1.5" too long of d shaft make this annoying problem? Any thoughts?