Transmission service question/ pan

[Jeepwm69]

I've got a 95 GMC with 350/automatic and the transmission fluid has never been changed. ODO shows 48K so I figure it's due. I know I have to drop the pan, and I figured WHILE the pan is dropped, why not add a drain plug where next time I can just do a couple of simple drain and fills to get some new fluid in there.

So, are all 4l60E pans the same? I notice some say "late model" and there are apparently some OEM deep pans with drain plugs. I was wondering if one of these would fit my truck?

http://www.ebay.com/itm/4L60E-GM-Tra...#ht_631wt_1170

[clinebarger]

To run the late Deep 4L60E pan.....All you need is the corresponding filter, Order one for a 01 C1500 5.3L.

The drain plug on those pans are useless 90% of the time.....The bolt head will round off useing hand tools. I use a 1/2 drive impact with a New 15mm chrome Snap-on socket (The only thing I use that socket on, To keep it from wearing).

[Jeepwm69]

So it's that hard to get the drain plug out?

Almost all of my vehicles have always been standards, so the only automatic I've had up to this point is a 3rd Gen 4runner. I would do a simple drain and fill on it at 1/2 the
recommended interval since you only get out about 1/4 of the fluid on a drain and fill.

Does anyone make a decent aftermarket pan that has a normal drain hole?

[Zane M]

Just go to your local parts house and pick up a drain plug for your existing pan.
I did this with my '02 Blazer with the 4L60. It took about 5 minutes to install.

[Jeepwm69]

I would think adding an aftermarket plug would result in leaks over time. How does this plug go into the oil pan? Short of dropping my pan, drilling a hole, and welding in a threaded bung I can't see the plug not leaking.

[sfran]

Originally Posted by Jeepwm69

I would think adding an aftermarket plug would result in leaks over time. How does this plug go into the oil pan? Short of dropping my pan, drilling a hole, and welding in a threaded bung I can't see the plug not leaking.

I put a drain plug in a 700R4 transmission in my Camaro 12 years ago. It came with a shift kit I had put in it. I have never had a leak since doing it. You do have to drop the pan, drill it, clean it real good. But once it is done, servicing the transmission is a breeze! Mine was a double threaded plug. In other words, the inside piece slipped through the drilled hole and screwed into the outside piece. The inner is hollow, call it the bung, so a bolt screwed into that, which is the drain plug. No welding at all, and never a leak. If it is done right they shouldn't leak.

[Jeepwm69]

Originally Posted by sfran

I put a drain plug in a 700R4 transmission in my Camaro 12 years ago. It came with a shift kit I had put in it. I have never had a leak since doing it. You do have to drop the pan, drill it, clean it real good. But once it is done, servicing the transmission is a breeze! Mine was a double threaded plug. In other words, the inside piece slipped through the drilled hole and screwed into the outside piece. The inner is hollow, call it the bung, so a bolt screwed into that, which is the drain plug. No welding at all, and never a leak. If it is done right they shouldn't leak.

Sounds like exactly what I want. I'll nose around and see what I can find.
Thanks for the help.

[Jeepwm69]

Originally Posted by Jeepwm69

Sounds like exactly what I want. I'll nose around and see what I can find.
Thanks for the help.

Jegs 60175 or B&M 80250?

[Jeepwm69]

Bump

[clinebarger]

The Jegs one, Stay away from B&M & nylon crush seals.
The Jegs ones looks to use an aluminum crush seal.

[Jeepwm69]

Makes sense. Thanks for the reply!