Last year I bought an 85 shortbed toyota pickup with 33's and a 5 inch skyjacker lift kit. It has a bad driveline vibration between 25-30 mph and again at 50 plus. I swaped in the driveshaft from my 85 4runner to see if it was the driveshaft. No change. I inspected the t-case pinion, no plus, nut tight. The rear diff pinion nut was not tight, and the pinion had play. So I swaped in another 4.10 4cyl diff. No change in the vibration. What else could be causing this problem? Has anyone else had vibration problems with the 5 inch SkyJack lift kit?
Thanks
Chris