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Engine Oil Leak -- Rear Main Seal?
Normally there are no fluid spots under the truck in the garage, but today I noticed a patch of oil under the truck, pretty much right at the back of the engine. But it's not a puddle, looks more like possibly it was sprayed there in a fine spray. There is also a fine coating of oil on most of the oil pan plus the transmission. See pic below. I checked the engine oil level and it's down a bit from full.
So from the symptoms, what am I likely looking at here -- a leaking rear main seal? If yes, this is not something I would choose to tackle, so what kind of cost should I expect a (non-dealer) shop to charge to replace the seal?
Are there other possibilities besides the rear main seal? If yes, what might be the source of the oil leak?
04.5 QCSB 4x4, 156K, 2nd Owner, Pacbrake, Airbags with onboard compressor, CTS Insight gauge w/Backup Camera, Smarty Jr tuner