Vibration cones on around 62MPH. Have used an old fashioned tire balancer that spins the tires on the vehicle and have isolated it to the left rear.
Had highly respected 4WD shop go through rear end and put in new carrier, pinion and axle bearings (I was hearing some whining from the rear end and there was a lot of slack when shifting into/out of gear). Truck feels much better and it raised the point of vibration up to 65-66MPH (approx). I drive a lot of miles on the highway.
So, question is, what else could be likely cause of this vibration? It is annoying enough to rattle a half full (or less) can of soda in the cup holder. Very annoying.
This has been an excellent vehicle but this problem has been with me for
60,000 or so. New tires didn't stop it (well maybe improved it slightly) and with a truck this old, I hate to keep throwing big money at it.Any suggestions would be appreciated. I would like to use this for another
2-3 years and pass it down to my son.Thanks.