tell you what..i just put a new hughes pan on mine that i got a good deal on.it hold's 4-5 more quarts roughly my trans guy said and he even loved it soo much that he was snapping pics of it lol..if you can find one of those..take it..they are very,very nice...

 

The Mopar Performance pan requires some modifications to make it fit the 46RE. I'm not sure if it is even extra capacity either. I want to say it isn't.

You don't need to worry to much about cold weather performance since our trucks use ATF+4 (or at least you should be using it). When ATF+4 was being developed, one of the main goals was to improve low temperature viscosity. They accomplished this by starting with a group III base oil that has a special dispersant viscosity modifier added to it. It then goes through a process known as catalytic dewaxing which greatly improves its low temp viscosity. This gives ATF+4 one of the best cold weather performance ratings (Brookfield viscosity grade) of any transmission fluid. In fact, ATF+4 has a lower (lower is better) Brookfield viscosity grade then any other ATF type and most any other auto trans fluid, including most Mercon and Dexron fluid types. I think the Amsoil ATF is one of the only other fluids rated better then ATF+4.

If your curious about the technical bits, here is the SAE paper #982674 that talks about the creation of and test results for MS-9602 (ATF+4).
http://u225.torque.net/cars/tech/trans/982674.pdf

 

Lol, the tubes on that pan are so gimmicky looking. Turbulator's are used on the underside of airfoils on Aircraft. They aren't for cooling purposes, they are for smoothing air bubbles on the underside of the wing to relieve turbulence... lol

 

Great info, thanks! At least now I won't worry if I go to a larger capacity pan...b/c I absolutely use ATF+4.

 

http://www.mo-pod.com/pdf/09_Perform...log-120908.pdf
Go to page 276.

What mods are needed to make it fit? They have 2 sizes: 3.90'' and 4.50'' Deep.

 

You have to supply your own bolts. You also have to make up a filter stud mount because nothing Mopar supplies will fit - only the pan. And, you have to grind on the pan and dremel trim some of the tin baffles on the valve body to get the pan on. The reason for all this is that it is really just a 727 (36RH and 37RH) pan instead of a 518 (46RE). I know a few people who have installed it on various forums, and each of them reported that it didn't fit without these modifications.

Maybe Mopar has come out with a new one now that is better, but this is what I know to be true over the last few years.

 

I like silvers pan. Did that come with a place to put a sensors for the temp.

 

Yes, it was pre-drilled for the sending unit. It also has a magnetic drain plug to catch metal shavings and pieces. I love having a drain plug. Makes fluid and filter changes so much cleaner. Just drain it out first, then drop the pan. They have the natural aluminum like the one I bought, or you can get black powdercoat or chrome.

 

Black all they way that came with a new gasket and filter right?

 

Gasket yes, filter no.