Toyota pickup sas vibration

mileshigh

Well-Known Member
Joined
May 2, 2005
Location
Charlotte NC
Ok so with the snow I test the 4wd. The truck is an 89 with about 4" of lift (sas) with v6,rf150, and gear driven tcase with 4.7 gears. With the hubs locked and in 2wd no issues....in 4hi there is a bad vibration and when I let of the gas or push in the clutch there is an awful grinding noise coming from the tcase. In 4Lo there is no noise and no noticeable vibration however my top speed is around 10mph in 4th gear...

I'm looking for any ideas....I would think if it was a driveshaft problem it would be present in 2wd with the hubs locked. The tcase was done by previous owner...so no idea but if the case wasn't clearanced wouldn't it also effect 2hi and 4lo.

Thanks
Brett
 
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