Transmission Pan

[JW2024]

I bought a Dorman replacement transmission pan for my 2024 2500. It’s the same size as the OEM but it includes a magnetic drain plug. I was looking at the Banks or PPE pans but they were too big to fit with the AEV skid plate. This one has a little under 1/8” clearance between the drain plug and the skid plate. 
 

Anyone know how much movement, if any, there is in the transmission?  I’ll drill a clearance in the skid plate if necessary. 
 

[newdude]

35 minutes ago, JW2024 said:

I bought a Dorman replacement transmission pan for my 2024 2500. It’s the same size as the OEM but it includes a magnetic drain plug. I was looking at the Banks or PPE pans but they were too big to fit with the AEV skid plate. This one has a little under 1/8” clearance between the drain plug and the skid plate. 
 

Anyone know how much movement, if any, there is in the transmission?  I’ll drill a clearance in the skid plate if necessary. 
 

 

 

 

I'd say zero because of driveline angles.  I'd either hole out the skid plate or clearance the skid plate with washers.  

[JW2024]

Thank you newdude. I’ll just drill a clearance hole tomorrow and remount the skid plate. 

[JW2024]

Clearance hole done. Plenty of room now. 

[davester]

Well done.  That's the sort of situation where I would drill the hole, and then need to oval it to get the whole bolt head visible.

[JW2024]

4 hours ago, davester said:

Well done.  That's the sort of situation where I would drill the hole, and then need to oval it to get the whole bolt head visible.

I figured that’s what would happen but I taped a piece of cardboard that was thicker than the gap and then tightened up the bolts. The drain plug left an indentation on the cardboard and it drilled there. 

[bruceb58]

Is that the drain bolt or the level bolt...you will need to be able to access both. Can you fill the transmission with the skid plate on?

[JW2024]

32 minutes ago, bruceb58 said:

Is that the drain bolt or the level bolt...you will need to be able to access both. Can you fill the transmission with the skid plate on?

That’s the drain bolt. The level bolt is in the front. I believe I can reach it. I don’t think I can reach the fill plug with the plate on but I’ll check when I get back in town on Saturday and let you know. 

[bruceb58]

11 hours ago, JW2024 said:

That’s the drain bolt. The level bolt is in the front. I believe I can reach it. I don’t think I can reach the fill plug with the plate on but I’ll check when I get back in town on Saturday and let you know. 

Unless you can reach all 3 without removing the plate, no sense in drilling any holes.

[JW2024]

3 hours ago, bruceb58 said:

Unless you can reach all 3 without removing the plate, no sense in drilling any holes.

The hole I drilled wasn’t for servicing purposes. It was for peace of mind. There was less than 1/8” clearance between the drain bolt and the skid plate. I just wanted more space. Takes 2 minutes to remove the plate for servicing. 

[mrjulian416]

Ahhh.. adding clearance makes sense.  I was going to ask how you'd deal with the quart of fluid that would end up on top of the plate if you pulled that plug with the plate in place.

[JW2024]

4 hours ago, mrjulian416 said:

Ahhh.. adding clearance makes sense.  I was going to ask how you'd deal with the quart of fluid that would end up on top of the plate if you pulled that plug with the plate in place.

I’d have to have a large catch pan to get all the fluid that would run out of every drain hole on the skid plate. It would be everywhere. 

[SIXFOUR]

Good to know 

[JW2024]

On 10/30/2025 at 11:52 AM, bruceb58 said:

Is that the drain bolt or the level bolt...you will need to be able to access both. Can you fill the transmission with the skid plate on?

I just checked. You cannot fill the transmission with the skid plate on.