OK so my problem is a rumble or vibration when going through the gears. When the clutch is in but moving its fine, when the rear shaft is out and running on front drive its fine. I thought maybe it was my tires since there 35s and pretty much shot. But i believe maybe its the shaft. I have 4inch lift with 35s, sye kit, i was braking u joints recently but i replaced all in the rear and made no difference. (They were shot though) I also have new gears in the diff so i know they are ok. I was told that my driveshaft is to short and the angles are bad. Would pictures help you guys out?
I was thinking of replacing the driveshaft. But would like to know for sure if thats the problem.