Today I decided to take my 4Runner to the shop and get this problem corrected. The shop agreed with me that it was the transmission output shaft bearing and replaced the $30.00 bearing and charged me $70.00 for 1 hour labor.

The vibration problem is now 100% corrected!!

I suggest anyone with vibration problems look at the drive shaft for excess play. Do not only check in one position, move the truck rotation the shaft slightly and check for play.

I see many posts that talk about vibration but mostly read about wheel balance and wheel bearings; this is another thing to check for.

Rides like new!!

Don