OK, here is the response I received from Tom Langdon..
"Butch, the 235 doesn’t produce enough torque to give satisfactory “in town” acceleration with a highway axle ratio (3.08?) If you use an original axle ratio (4.11) the engine runs too fast on the highway.
The 200 4R has 10% more 1st gear ratio and with the .67 overdrive ratio you can use a 3.73 axle ratio and still have a highway ratio (3.73 x .67) of 2.50 or a (4.10x.67 ) 2.75." - Tom
So now maybe I'll look for a 200-4R as I only want to do this once and I want to be able to take it on the highway with satisfactory results.
Thanks, Butch.
