Best Transmission
Elder User
Joined: Dec 2003
Posts: 761
Likes: 0
This question should only be directed towards automatic transmissions - Ford never actually made any manuals which they've used in their trucks - except the 5 speed M5OD, and even this is really a Mazda design. That C6 sure is one big tough auto though, but even it cannot compare to the manuals of it's time (SM465,NP435,T18,T19, SM420 - all were better for work). Back in the 60's, 70's and 80's things were not as they are today. Autos have come a long way - back then though, the manuals thouroughly outclassed the autos for real work uses, the C6 was merely the best offering going from the auto camp - that and maybe the TH400.
Last edited by sinister73; Aug 21, 2005 at 04:27 PM.
Post Fiend
Joined: Jan 2003
Posts: 10,323
Likes: 2
From: Montana Territory
The C6 was last used in 429 powered U-Haul trucks in 1997.
I'd definetly vote for the C6 as being tough, I've broken the bellhousings and the front pumps right out of them, but they are danged tough.
I'd also say that New Process (New Venture), Spicer (Dana), Clark, and Borg Warner also built very strong manuals and Transfer cases.
I'd definetly vote for the C6 as being tough, I've broken the bellhousings and the front pumps right out of them, but they are danged tough.
I'd also say that New Process (New Venture), Spicer (Dana), Clark, and Borg Warner also built very strong manuals and Transfer cases.
Guest
Joined: Nov 2004
Posts: 7,988
Likes: 55
From: north west new jersey
c6, it's the back bone for the new ones. but a c3 and 4 when beefed up are dynomight drag race tranies. and they also are the back bone of the smaller 4 speed tranies
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From: Melbourne, Aus
Well my view is going to be a little different...
While the C6 is dang good for reliablility.
Efficiency, shift quality, logical shifting etc. aren't its strong points. And therefore I am not going to choose it.
I am going to go for the following two:
Not made by Ford, but available in some Ford trucks outside the US: ZF-6 speed auto.
ZF-6 speed manual in Superduties.
While the C6 is dang good for reliablility.
Efficiency, shift quality, logical shifting etc. aren't its strong points. And therefore I am not going to choose it.
I am going to go for the following two:
Not made by Ford, but available in some Ford trucks outside the US: ZF-6 speed auto.
ZF-6 speed manual in Superduties.
