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Old 01-19-2021, 11:11 AM   #18
denis4x4
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Join Date: May 2010
Location: Durango CO
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Default Re: Model A rearend conversion

Quote:
Originally Posted by Charlie Stephens View Post
What many of the people are overlooking is that the Model A is not a car you would like to run all day at 75 MPH. I have a '31 RDPU with 3.54 gears. It is happy at 55 MPH. It will do 75 but at that speed the front fenders act like airplane wings making it very light in the front and susceptible side winds. A good example would be the wind being pushed by a semi or a wind blowing down a canyon that crosses to road. I like it to be my decision when to change lanes. Mechanical brakes are not designed for 75 MPH. The steering and suspension are not designed for 75 MPH.

Charlie Stephens

Agreed....my point was simply that the engine determined top speed, not the transmission. I'm running a B engine with an original CRAGAR head, hydraulic brakes, F-100 steering box and a host of other go-fast goodies.
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