PPE Thermal Bypass

[Hunter11]

Just wondering if anyone is running the PPE transmission thermal bypass to lower trans temps on the 6.4 ZF8. I installed a thermal bypass on my wifes GMC 5.3 trans and it lowered the temps by 25*. I emailed PPE to make sure it fits the ZF and they replied it does fit. Thanks for any feedback.

https://ppepower.com/products/ram-t...pass-valve-2019-2024-2500-3500-5-7l-6-4l-6-7l

 

[dieselscout80]

My truck’s transmission temperatures stay constant at 167 or 168 degrees even in the summer towing 10k, so I’m not sure it’s necessary.

I think it needs to get warm enough to keep moisture out of the transmission fluid.

Maybe if one was pulling full time and heavy it might be worth considering.