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I have an 01 dmax with they ally in it. i was wondering if anyone has taken that transmission out and put in a 6 sp manual. I was also wondering which transmissions actually better? Any help would be appriciated before i actually do this. thanks
 

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It's been discussed...

General consensus seems to be that it's easier and more cost effective to get one or the other.

But if you have the time, money, and preferably a donor vehicle, go for it and let us know how you make out!

I love my ZF. Whether one is better or not? That all depends on what you do, and who you ask. ;)
 

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The plate on a duramax will take a ZF6 or an allison. If you do some shopping you can certainly find a ZF6. All the other parts you can get from a dealer unless you are lucky to find a trashed handshaker in a junkyard!
 

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you would be better off buying a new truck....really not worth the effort and complication involved in the swap IMO. Kind of like the "can I convert my 2wd to 4wd" question. :)

not saying it CANT be done, but it would be a VERY in depth project.
 

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DURAtotheMAX;1578768; said:
you would be better off buying a new truck....really not worth the effort and complication involved in the swap IMO. Kind of like the "can I convert my 2wd to 4wd" question. :)

not saying it CANT be done, but it would be a VERY in depth project.
actually, I think it is easier to change it from an allison to a zf6 than the other way. The TCM, steering shifter will have to be removed. A clutch pedal, master cylinder and slave cylinder will have to be purchased, and probably a shifter if it does not come with the tranny. I bet the shifter hole in the body exists on all trucks? There will likely have to be some minor drilling and a little welding to attach the clutch pedal and master cylinder but I don't expect it is that difficult.

Anyone done this recently on a truck? We would appreciate your info.

Thanks,

J
 

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A friend of mine has a 1996 chevy with a 6.5 td and it had a 4L80E. He bought a NV4500 i think and did the swap. He just cut a hole in the floor for the shifter....then custom made a clutch peddle out of angle iron. Cut a hole in the firewall for the peddle and master cylinder. As far as the tranny it basically fit onto the engine, but it was a tad shorter than the auto but everything fit somehow. I was watching him produce this truck and I was amazed at how this would ever drive. But it does. So good luck with your project if that's the route you want to take.
 

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wreckingball;1581097; said:
Weller Truck has six ZF S6 650's in stock; no idea of the price.

www.partsbyweller.com

Bill
They're even GM ones (part# 12577015)

Nice little piece of info.... gmpartsdirect lists the transmission assembly ($3,100), so I assume one could get one through GM as well, but maybe not...



Later, TW
 

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So far I have never seen a wrecked ZF truck :mad: . I keep my eyes open and have been watching Klodes Auto Auction regularly.
 

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a year ago I was searching for used parts on the internet. I did see a used zf6 for sale somewhere back east for 1750 IIRC. there got to be some . . .
 
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