O/T Auto transmission service

I , too, priced the flush/exchange and found the price to be too high. I also found that the used fluid is filtered and reinstalled. Now, I ain't AJ Foyt, but that did not sound like a good idea. I insead bought a case of fluid and a filter. I put an adapter on my cordless drill and a 10mm socket and went to work. I dropped the pan and let her drain. I then bolted the pan back up and refilled the fluid to normal operating level. Then I ran the car till she was good and heated up, and dropped the fluid again. This time I changed the filter. I filled it up a second time.

The tranny took 5.5 quarts per swap. I have no idea how much a GM TC holds, but I suspect I was about 75% efficient. This was confirmed by the difficulty of checking the oil due to it's transparency. It looked exactly like what was in the last bottle.

This way cost me about $36 for the oil, and 15 for the filter. A total of around $50.

I set the clutch on the drill very light. All screws were started by hand. The final torque was also set by hand. HTH

Let's go Mountaineers,

Aaron

I drop the pan myself, change the filter, clean the magnet and button it back up. Fill with fluid, pump out 2 to 3 quarts and re-fill. Continue until I've run about a quart more than capacity through it. I've never lost a tranny doing it that way.

I prefer manual due to it's better longevity and better able to control the vehicle, but my wife won't drive one and can't get a mini-van these days with a stick. :o(

That's my $0.02 worth and there is no refund!