Transmission drain plug kits

[stingray1966]

Has any one tried installing a drain plug to the ****** pan
do they leak
just trying to find an easier way to swap out my ****** fluids

 

[JimVonBaden]

I use this on my car. Gone two years with no leaks.

http://www.fumotousa.com/

Jim

 

[csp]

Pretty sure the OP is referring to installing a drain into a transmisison pan that doesn't have a drain plug.

I installed one in a TF727 a few years ago and it hasn't leaked yet.

 

[JimVonBaden]

Pretty sure the OP is referring to installing a drain into a transmisison pan that doesn't have a drain plug.

I installed one in a TF727 a few years ago and it hasn't leaked yet.

I thought so to, and Fumoto makes adapters for such a thing. IIRC Girl did something like this to her truck.

Jim

 

[Tone-NY]

I installed one a long time ago on my 1974 Chevelle. B&M sold it, simple instruction and install never had problems with it. 4 years with it on and no leaks. Only issue was it was aluminum, so when you installed the nuts that held it together to the pan you needed to be careful not to over tighten and strip the threads.

 

[kbkna]

Why is it mounted on the angle side and not on the bottom that would let out all the fluid? Thinking of doing it on my F150 too.

 

[aka Larry]

Why is it mounted on the angle side and not on the bottom that would let out all the fluid? Thinking of doing it on my F150 too.

Avoiding damage via ground clearance would be my guess.

 

[Cobra6]

Since you have to take the pan off anyway, I just replaced mine with one that comes with a drain plug.

It seems like I got a decent Scott Drake chrome pan for a C-4 ****** on one of my Mustangs for $20 - $25

If it needs to look stock,I think the gray ones (paintable) were even cheaper

 

[GirlnAgarage]

I did a B&M plug it add on. Fairly simple if you don't screw it up lol I welded my plug in.

Plug doesn't need to be on the bottom. You don't want it on the bottom anyway to protect it from road debris. The point of the plug is to drain the majority of the fluid out before you drop the pan. The biggest and most common mess is from the fluid that leaks out around the gasket when you crack the bolts and tilt the full pan when you try to bring it down. Anyway, residual fluid won't matter. You better be cleaning and inspecting the metal slush on the bottom of the pan and whatever is stuck to the magnet.

If you want to drill the drain hole while the pan is still on the ******, you better be real sure where everything is underneath that pan. When the drill bit punches through, don't let it go far.

 

[tkonbass]

Has any one tried installing a drain plug to the ****** pan
do they leak
just trying to find an easier way to swap out my ****** fluids

I installed this B&M drain plug in my pan. I did not use the nylon seal/washer because it deformed before I felt it got tight enough so I sealed it with RTV instead. No leaks.

 

[alan camby]

I welded a 1/2-20 nut to the bottom of my 2011 Silverado trans pan.
If I were to do it over, as some have already mentioned, I would have put it on the side of the pan for the extra security from something snagging it. No leaks and don't think i will have any problems since i don't off-road this truck.

 

[38Chevy454]

I do similar to what Alan did, I just weld a 1/2 x 20 (that is fine thread) nut and use a short bolt with a copper or nylon washer. I weld to the side of the pan though near the bottom. Done several cars this way and never any leak problems.

If you look at factory pans with a drain plug they are almost always on the side.

 

[alan camby]

I do similar to what Alan did, I just weld a 1/2 x 20 (that is fine thread) nut and use a short bolt with a copper or nylon washer. I weld to the side of the pan though near the bottom. Done several cars this way and never any leak problems.

If you look at factory pans with a drain plug they are almost always on the side.

Sounds good
I could not find a washer in the garage to use on my plug. So I used a ring terminal that had a 1/2" ring size. I cut off the part that crimps to the wire. Figured that would work fine since they are made of copper.

 

[Gary S]

My Son put them in his TH350 pans and likes them. His don't leak. He didn't hang any fancy valves, petcocks, or any other junk like that under the car.

His were simply,
1. Drill a hole in the pan
2. Install the drain sleeve and plug
3. Refill the ****** and use like normal.

I don't drive auto trannys, so I don't use them.

 

[alan camby]

My Son put them in his TH350 pans and likes them. His don't leak. He didn't hang any fancy valves, petcocks, or any other junk like that under the car.

His were simply,
1. Drill a hole in the pan
2. Install the drain sleeve and plug
3. Refill the ****** and use like normal.

I don't drive auto trannys, so I don't use them.

I would have a manual trans if it were available. Can't find manuals in full size 1/2 tons in this country any more
Last 3 vehicles were manuals. 06 Dodge Cummins, 02 Silverado, and 08 Jeep JK.

 

[38Chevy454]

Sounds good
I could not find a washer in the garage to use on my plug. So I used a ring terminal that had a 1/2" ring size. I cut off the part that crimps to the wire. Figured that would work fine since they are made of copper.

That works or just look for copper brake washers or spare oil drain plug gaskets.

 

[TennesseeZ]

I've put one in every pan I've taken off for the last 35 yrs or so. Most parts stores have them, I carefully drain, then remove the pan, then I can see the best place to install the plug without interference. I put it as low as I can on the side, on the rear or as far back on the side as I can get it. Never had a problem with leaks or anything.

 

[NUTTSGT]

Done them on the C4 trans before. Like others have said, a fine threa 1/2 nut welded on and a GM drain plug.

 

[BigAl62]

Has any one tried installing a drain plug to the ****** pan
do they leak
just trying to find an easier way to swap out my ****** fluids

Question - what type of trans do you have? There are pans available with drain plugs already in them, otherwise the B&M kit is pretty good.

 

[Carson Blocks]

Instead of modifying the ****** pan, have you considered something like a mityvac fluid exchanger? I bought one of the big ones a while back and use it all the time for stuff like this. Hose in, pump the fluid out, then I can change the gasket and filter if so inclined without having to deal with a pan full of fluid.

 

[stingray1966]

I looked at the mityvac but at 65 bucks drain plug kit about 5 bucks
Any way what I have seen here I will be installing them in all three grand cherokees
I will be replacing the filter any way But as we know you dont get all of the old fluid out
so my game plain is run it for a month and drain it with the drain plug and install about
4 qts un a few month I will have it all filled with clean fluid
Thanks for all your help I really like this site there is a lot of good infor here
Norm

 

[38Chevy454]

Question - what type of trans do you have? There are pans available with drain plugs already in them, otherwise the B&M kit is pretty good.

Not to overstate the obvious, but $2 in parts for a nut, bolt and washer; along with about 15 minutes work for drilling, welding and paint will solve the problem.

If you don't have a welder, the B&M drain plug kits can work without welding.

Either solution is much less cost than a new $100 trans pan. Unless you also want a deep pan for more capacity, the modified stock pan is way cheaper.

No matter how you do it, the drain plug sure makes draining trans fluid a lot easier and less messy job.

 

[PatJ800]

I have done it to two TH350's and one TH400. I install the autometer trans temp gauge so I just drilled the hole and brazed the fitting included with the gauge in to the pan. Worked great each time and was very easy. Temp sender goes in to the fitting but sender is removed to drain for service.

 

[Carson Blocks]

I looked at the mityvac but at 65 bucks drain plug kit about 5 bucks

Yeah, there's that. I have too many vehicles and they're always coming and going so for me it made more sense to invest in the tool. Also, I use it for differentials, for cleaning out the brake and power steering reservoirs for flushes, and a bunch of other stuff. I actually bought it to do oil changes on a Mercedes where the extractor is actually the preferred oil change method that gets the most fluid out, but now that I have the tool, I find new uses for it all the time. The plugs will work just fine though and are definitely the cheaper solution.