Need help identifying rear differential
I have a 2019 3500 SRW HO 6.7/AISIN crew cab. 8' bed. The rear axle is the new 12" AAM. I have had a devil of a time figuring out exactly what kind of limited slip I have. It is not the same as the 11.8 or 11.5" they were using up until this new 4.5 gen powertrain. I believe it is a Tracrite PC (plate clutch). Can anybody ID this for sure. 2 people MOPAR headquarter said that it does not need friction modifier (insinuating a helical gear LS) but all the dealership parts people insisted it called for the friction modifier which would mean there are clutches in there) Any help you all can lend will be appreciated.
https://cimg0.ibsrv.net/gimg/www.die...52c2346575.jpg https://cimg4.ibsrv.net/gimg/www.die...61e440096.jpeg |
I don't have an ASIN transmission in my 2500 but I do have the same brand axle as yours. So not sure if this will help.
My research suggest that newer axles have electronic limited slip which uses brake pressure to equalize traction. If that is true, you don't need the friction modifier. I recently changed the rear axle oil and didn't add the friction modifier. |
Originally Posted by NC Ram
(Post 3361219)
I don't have an ASIN transmission in my 2500 but I do have the same brand axle as yours. So not sure if this will help.
My research suggest that newer axles have electronic limited slip which uses brake pressure to equalize traction. If that is true, you don't need the friction modifier. I recently changed the rear axle oil and didn't add the friction modifier. |
I think it's the brake force. But don't take that to the bank.
Info on these trucks is harder for me to get than past vehicles I've owned. There are some F150 forums that are very active. This one not so much. However, one of the best sources of information I have found is on YouTube. Check out Marion Blair's YouTube channel. He has a 2500 but you'll find much crossover information. |
Originally Posted by NC Ram
(Post 3361222)
I think it's the brake force. But don't take that to the bank.
Info on these trucks is harder for me to get than past vehicles I've owned. There are some F150 forums that are very active. This one not so much. However, one of the best sources of information I have found is on YouTube. Check out Marion Blair's YouTube channel. He has a 2500 but you'll find much crossover information. |
Originally Posted by NC Ram
(Post 3361222)
I think it's the brake force. But don't take that to the bank.
Info on these trucks is harder for me to get than past vehicles I've owned. There are some F150 forums that are very active. This one not so much. However, one of the best sources of information I have found is on YouTube. Check out Marion Blair's YouTube channel. He has a 2500 but you'll find much crossover information. |
Along time time Ram owner friend of mine summed it up this way.
Every Ram he's owned has its peculiarities. And figuring those things out can be a challenge. The oil for your rear differential sounds like an example of this. He loves his trucks. But they are peculiar from one to the next. |
Originally Posted by NC Ram
(Post 3361248)
Along time time Ram owner friend of mine summed it up this way.
Every Ram he's owned has its peculiarities. And figuring those things out can be a challenge. The oil for your rear differential sounds like an example of this. He loves his trucks. But they are peculiar from one to the next. |
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