Any mechanics out there have any tips on ensuring a leak free transmission pan seal? I’m changing the fluid and filter in my GMC Sierra. I dropped the pan after work today. I’ve changed trans fluid…I dunno, 6 or 8 times in different vehicles - but this one’s a pain. Difficult to get the pan out since the front driveshaft, exhaust, shift linkage, and a heat shield seem to all be in the way. So…I do NOT intend to do this chore again. And I don’t want any seeps.
I’m getting a flush next time! I think I’m getting to old to lie on my back in transmission fluid.
I ordered an AC Delco filter and gasket. The gasket is the rubber type, with no metal backing/reinforcement. I was hoping the transmission had a reusable gasket when I pulled the pan, but alas, it appears to be cork. The transmission on this truck was replaced previously.
So, I will use the AC Delco floppy rubber gasket. I will clean mating surfaces. I will torque to spec in a star / crossing pattern. Any other tips from the pros?