Jump to content

Recommended Posts

Posted

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. 
 

IMG_2088.thumb.jpeg.c40f62cee639d8161d0332b08d31a234.jpeg

  • Like 1
Posted
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.  

  • Like 1
Posted

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.

Posted
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. 

  • Like 1
Posted

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?

Posted
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. 

Posted
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.

Posted
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. 

  • Like 1
Posted

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.

Posted
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. 

Posted
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. 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Latest Articles

  • Posts

    • Does anyone know if the GM 85628205 and 85628208 are interchangeable?   The 85628205 is an assembly of the seals mated to a thin metal shim and the 85628208 appear to be just the rubber seals without being an assembly. The reason I am asking is that I'm installing a PPE Thermal Bypass Valve and it doesn't come with seals.
    • Thanks @newdude, guess I'll keep looking.  Test driving so many trucks that have obvious things broken, I'm thinking "if they couldn't even be bothered to fix the power seat," what else is broken".   Just drove a 2021 where the power seat motor was grinding/binding and wouldn't do anything but make a terrible sound.   An owner that puts dents on the bumper, doesn't fix a seat motor, and had spotty service intervals (along with missing major services) doesn't give me the best of confidence.   Amazed at the number of people that will finance a $60k+ truck, run it into the ground, then trade with a loan balance (every single one had "loan/lien reported" on the CARFAX at the last year of registration).
    • Not true! I have been runing them since 2006 F250! suspension component that works as a sway bar, a traction bar, and a helper spring points directly to the RoadActive Suspension (RAS) kit. Works as a sway bar, a traction bar, and a helper spring.
    • Here's a starter kit:    CC Jensen, a Danish oil testing Concern gives us the following guidelines:   ISO 14/12/10 Very Clean Oil ISO 16/14/11 Clean Oil ISO 17/15/12 Lightly Contaminated ISO 19/17/14 New Oil ISO 22/20/17 Very Contaminated and not suitable for any service.   In addition CC Jensen gives a table showing how engine life is increased by cleaning up the oil. For example cleaning the oil from 19/17/14 to 13/11/8 will extend motor life by a factor of 6X.   But even cleaning it two “Life Extension Classes” will double motor life. So perhaps giving those classes would be useful:   21/19/16 20/18/15 19/17/14 18/16/13 17/15/12 16/14/11 15/13/10 14/12/9 13/11/8   *************************************   https://testoil.com/program-management/setting-iso-cleanliness-targets/   Third paragraph from the bottom will give a starting point.    Your next question should be, okay 10um at what Beta ratio and the answer is in the graph Beta 75.   Then the next question is what is your chosen filters profile? (Purolator PL series below) The red dot is Beta 75. This was the information I obtained from MANN a few years ago. So the best filters, Purolator One, AMSOIL EA, FRAM Ultra, Royal Purple, Bosch Premium should get a doubling engine life over filters like Purolator L, any service filter from any quick lube, WIX, NAPA, STP, Mobil 1, Purolator BOSS.    And as noted by CC Jensen a 2-5 micron @ Beta 200 bypass system has the capability of a six fold improvement. AMSOIL has such a system as does Donaldson.       Now having said all that testing is the touchstone. Test the oil NEW and test it with your chosen filter. Then test over milage. Do the work, get the result. But understand this in NOT absolute BECAUSE this is one factor in isolation.   Example:    A valve spring supplier can state that with cam X and a valve train of Y grams the valves will not float to 7K rpm. is that true if the builder choose a system 20 grams over limit? Common sense must be used and limits understood. 
    • This doesn't look like a GM truck. Not needed on a HD truck
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...