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Old 15th October 2011, 12:43 PM
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Michel Michel is online now
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Join Date: Feb 2008
Location: Sydney, Australia
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Default Re: 6.9 Transmission Upgrade

Quote:
Originally Posted by SEL_69L View Post
Is there a 4 or 5 speed American auto transmission from the muscle car era?
Auto transmissions from this period do not have electronic control, and therefore should be more adaptable to the 6.9.
I know of another alternative currently installed in an American muscle car:
-three speed auto with manually operated lockup on all three ratios.
The TurboHydro 400 (T400) by GM and the Torqueflite 727 (T727) by Chrysler are bullet proof boxes.
However, they are only 3 speed...
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Michel

1978 W116 690SEL # 3312
1985 R107 500SL AMG
2000 W208 CLK430 Coupe
2003 W163 ML320
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