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Mod | | | Forums66 Topics128,036 Posts1,055,450 Members48,422 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jan 2002 Posts: 25 Member | | Member Joined: Jan 2002 Posts: 25 | Are any of you pro mechainics familiar with the late model diesel powered medium duty trucks that use a 5 or 6 speed manual transmission? I need help selecting one to use behind a 5.9 Cummins.I have been through the junk Getrag 5 speeds and the automatics with the trick converters.If this the wrong kind of question for this forum would someone mail me and tell me where to look.Thank you for taking your time......J.D.
It's what you learn after you know it all that counts.......
| | | | | Joined: Apr 2000 Posts: 247 Member | | Member Joined: Apr 2000 Posts: 247 | You probably want a NV4500 transmission. That's what comes behind the stock 5.9 Cummins now, after the Getrag was used a couple of years. They found out pretty quick that the Getrag was no match for the 5.9 Cummins, and switched to the NV4500. But be forwarned, its a VERY popular transmission, and it's hard to find one USED for less than $1500. New ones will set you back $2500. Advanced Adapters sells a kit to swap from the Getrag to the NV4500, and it includes the transmission. It ain't cheap, but it comes with everything you need. Here's their website: http://www.advanceadapters.com/index515.html | | | | | Joined: Jan 2002 Posts: 25 Member | | Member Joined: Jan 2002 Posts: 25 | Thanks for the website Vaughn,is this the trans in the new Dodges now,and is this a o/d? Appreciate the help.......J.D.
It's what you learn after you know it all that counts.......
| | | | | Joined: Apr 2000 Posts: 247 Member | | Member Joined: Apr 2000 Posts: 247 | Yes, this is what is in the new trucks now. It is a 5 speed with overdrive 5th gear. The overdrive ratio is .70, or a 30 % overdrive | | |
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