Clyde The Ride developed a Vibration - - Toyota Tundra Discussion Forum
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Clyde The Ride developed a Vibration


2006 Tundra 2X4 double cab V8 5-spd automatic ran perfectly until a few days ago when it developed a 'thrumming' sounding vibration at parking lot speeds, even coasting, using no brakes and in neutral. Today it is almost constant and, for the first time did it at freeway speed.
Dex, my mechanic checked U-joints, brakes and undercarriage and found all okay.
He thinks maybe LSD clutches are chattering and suggests changing the SVGQT-EA which was treated with ADATB-EA and have been in use 100k miles.
Is it possible the oil, which seems healthy, is the problem?
* SVGQT-EA is Amsoil Severe Gear 75W-90 Extreme Pressure Lubricant.
* ADATB-EA is Amsoil Slip Lock Gear Oil Additive.

What think you?

I use and talk about, but don't sell Amsoil.

2006 Tundra replaced a
98 Dakota 3.9 automatic, long bed.
Retired with broken A/C, July 2008.
623,000 miles.
On original engine and transmission.

+Everybody knows something you don't know.
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