DaveInDenver
Rising Sun Ham Guru
Rear main was done by the factory. I bought a new short block directly from Toyota. The oil pan on 22R is sealed with RTV so my (limited) experience is they either leak immediately or they don't forever. I probably over greased things when I stabbed the transmission and that could have certainly contaminated the friction material. But that was 2007 when the truck had 145k on the odometer (I don't know 100% but I'm pretty sure neither Martin or Steve did a clutch after 2015). So it would seem hard to temporally link that directly to a failure now. It never seemed to excessively slip or grab to me, anyway. Slipping the clutch on trails puts a lot of heat into it. Did you see pretty color streaks in the steel of the flywheel or pressure plate? It's also possible it was just time. The friction material was thin and prone to disintegration, maybe?Rear main seal was not leaking. The back of the oil pan was a little damp but I decided to leave it alone. To do it properly I would need to drop the oil pan and reseal it, which I was not prepared to do.
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