Ram 2500 6.7L CUMMINS Diesel + ZF 8 Speed Transmission *Heavy Mechanic Review* | How Good Is It??

I review the 2025 Ram 2500 Cummins Diesel Engine with NEW ZF 8 speed POWERLINE Automatic Transmission. I discuss the history of ZF and Ram and then go over Performance Specs, reliability and strenghtof this new 8 Speed Transmission like input torques, Max towing figures and give my opinion as a heavy duty diesel mechanic.

ZF POWERLINE AT Demo video -    • ZF PowerLine Product Demo  

What I Use:
Engine Oil - https://amzn.to/4aEbtNE
Engine Oil Filter - https://amzn.to/3J1nDUM
Engine Air Filter - https://amzn.to/3JMmMVV
Cabin Air Filter - https://amzn.to/3JMZAHh
Gear Oil - https://amzn.to/3PoIcxa
Penetrating fluid - https://amzn.to/3EOclkx
Rust protection - https://amzn.to/3Zo0Rh6

Towing Gear:
10 ton Pintle hitch (2.5" receiver) - https://amzn.to/3r7Axvm
7 Ton Adjustable hitch (2" receiver) - https://amzn.to/46i2iAf
Adjustable Pintle hitch mount (2.5" receiver) - https://amzn.to/3RqHGS3
15 Ton Pintle hitch - https://amzn.to/45SaCqv
10,000lbs Tie Down Straps - https://amzn.to/3ZBnxeh

My Camera Gear:
Go Pro Hero 10 - https://amzn.to/3ObZdJJ
Go Pro Hero 8 - https://amzn.to/36grzkM
Go Pro Accessories - https://amzn.to/3JLhlXo
Sony A6400 - https://amzn.to/3vkqzob

I take a deep dive into this upcoming New ZF 8 speed powerline Automative transmission in the new 2025 Ram HD platform. Overall It looks pretty impressive. I think for most people this transmission will be way overbuilt for there needs but it does mean that hopefully these new 8 speed transmission will lead great reliability and longevity.

the first thing that really caught my eye was that this is a commercially built and designed transmission which I really like to see. I think ZF's main focus was on the commmercial vocational truck use and application meaning this
transmission will be built tough and hopefully be extremely strong for the Ram Hd truck platform.

I think this 8 speed is exactly what Ram needed behind their 6.7L cummins. I think this ZF 8 speed is probably going to be a game changer and if they are as good as the ZF transmissions in the ram 1500 trucks it will be the new bench mark for HD truck transmissions going forward.

The one thing I'm not sure about is the HO cummins because technically the this engine is putting out too much power for the 8 speed. the ZF powerline has a max of 1,000 lb-ft of input torque so we'll have to see what happens there is RAM is going to keep the Aisin or if they will bump up the ZF powerline input torque figure.

Let me know what you guys think.



00:00 - Intro
01:49 - ZF History
02:51 - Ram 1500 8 Speed
04:20 - Ram 2500 8 Speed