To be honest I don't remember the whine starting... I just seemed to notice it there one day. It's entirely possible that it started in just the low gears, but I was preoccupied with fixing another issue that may have been causing a whine too (I originally thought it was a diff whine) that I wasn't listening to the tranny until recently. It had another whine that I took care of in the wheel bearing, that might have been drowning out the tranny one...
It seems worse at low speeds, but I'm not sure if that's because it's in 1st and 2nd, or because that's just the way the whine is at that speed... It's hard to drive 10km/h in 4th to test it...
If it is the tranny bearings what am I looking at? Big repairs? There's only 138,000kms (83,000 miles) on the truck...
Thanks for the speedy reply, any other thoughts?
Cheers,
Feragoh