Transmission Drain Back

[DavidC]

It is silly no doubt. Its been that way forever, not that it makes it any better.

I did install a drain plug in my pan. Its recently developed a very small leak. Annoying to know its there but not enough to do anything about it. I believe it is the gasket leaking at the bulk head. Probably going to have to find a better sealing washer than the crap one it came with.

Still beats draining it the "old fashioned" way.

You could go buy a large tub and collect your fluid for reuse if you are going to get back into it. Just make sure the pan is PRISTINE clean where you will be draining. Probably still be a good idea to funnel through a fine paint strainer or cheese cloth before putting the fluid back in.

I had the after market that did the same thing. I finally broke down and bought the pan with the built in plug.

 

[Cummins12V98]

It is silly no doubt. Its been that way forever, not that it makes it any better.

I did install a drain plug in my pan. Its recently developed a very small leak. Annoying to know its there but not enough to do anything about it. I believe it is the gasket leaking at the bulk head. Probably going to have to find a better sealing washer than the crap one it came with.

Still beats draining it the "old fashioned" way.

You could go buy a large tub and collect your fluid for reuse if you are going to get back into it. Just make sure the pan is PRISTINE clean where you will be draining. Probably still be a good idea to funnel through a fine paint strainer or cheese cloth before putting the fluid back in.

Brake clean it off and put a bead of the RiteStuff on it, leak gone!!!

 

[kthaxton]

I did install a drain plug in my pan. Its recently developed a very small leak. Annoying to know its there but not enough to do anything about it. I believe it is the gasket leaking at the bulk head. Probably going to have to find a better sealing washer than the crap one it came with.

I've had good and bad results over the years with the B&M type drain plugs, so for my 2015, I bought this Dorman set of washers and added the rubber embossed one to the drain plug kit. So far so good.
https://www.dormanproducts.com/p-103076-090-844cd.aspx

 

[Makensmoke]

I put a drill in plug in my '00 pan "back in the day" and wouldn't you know I drive the truck so little now I haven't looked at the trans fluid for 10+ years. But it too leaks, there is so many little leaks under the old girl that I just let her drip. Probably needs a new gasket next time the pan comes down...if ever!

Looks like bung pans are $300 or so, do you use a stock oil pick up with a deeper sump? Assuming so.

 

[RammerJam]

I put a drill in plug in my '00 pan "back in the day" and wouldn't you know I drive the truck so little now I haven't looked at the trans fluid for 10+ years. But it too leaks, there is so many little leaks under the old girl that I just let her drip. Probably needs a new gasket next time the pan comes down...if ever!

Looks like bung pans are $300 or so, do you use a stock oil pick up with a deeper sump? Assuming so.

What happens on those OEM pans is --

The holes get distorted. Take a small Ball Peen hammer, turn the pan upside down on a hard (preferably metal) surface and use the peen by smacking the flat part of the hammer in order to reshape the mounting holes with the peen. Don't distort the lip of the pan. Not cool

Real Mechanics used to do this as a matter of course.

 

[RammerJam]

Here's another way.