Originally Posted by weedahoe
When I did my change I did it all with 17 quarts of RP also. Not cheap at $11 a quart plus filters but I felt good about it.
I dropped my pan and drained the oil and changed the filters. I put fresh RP oil in it and disconnected the trans oil line at the coupler just before it goes into the cooler. You need a 3/8 fuel line disconnect tool to slide in the couple and then pull it apart. Once I had it apart I push on a 3ft section of 3/8 hose and run it to a bucket. Then I started the truck and let the trans pump push the old oil out and into the bucket. After about 10-15 seconds I shut it off and refilled and kept doing this until I had all 17 quarts in it.
So which line did you disconnect before the cooler? The top line or the bottom line? Both are the same obviously just wondering which line is "hot" and "cold"
And while we're on the subject, is there a gasket for the tranmission pan? If not what kind of sealant is best to use. I've seen a lot of guys get in trouble using too much sealant and having it squeeze back into the pan. Is this an issue on these trucks or does the pan have a fairly wide flange?
Thanks for any help, like to get educated before diving in.