[JDW-SVX]

Originally Posted by ShaneHobson

I can vouch for the magic potion called Dr Tranny that Carl is recommending. I dropped a couple of tubes down the transmission filler tube and it immediately fixed the shuddering that occurring during slow, tight turns.
This is a fault that the transmission shop and the Subaru dealer couldn't solve.

I don't think that would work in this particular case. The shuddering that Carl mentions is being caused by the AWD Transfer Clutch binding during tight turns (where the input and output shafts of the transfer clutch are rotating at different speeds).

Australian delivered SVXs do not use this type of AWD system - they use the VTD system, which does not use a transfer clutch.

I actually had this very issue on my grey SVX - it was caused by a combination of a worn driveshaft centre bearing, worn transmission mounts, and one completely broken engine mount. This caused the driveshaft to be slightly out of alignment, causing shuddering during fast standing starts.

I have also experienced the issue of shuddering caused by a binding AWD transfer clutch - my Vortex 4WD Turbo uses the same transfer clutch based AWD system that US model SVXs use. Occasionally, I would feel the drivetrain binding up during standing starts when I was also turning. In my case, an ATF fluid change fixed that, but that shuddering was definitely caused by the transfer clutch.

Jason.