Mitchell 26% or 36%?

[1929]

Originally Posted by Barry B./ Ma.

I have a 29 coupe with a touring engine, a 5.5 Snyders head and a 3:78 rear and I find that to be just right with the Mitchell 26% overdrive. I think it may lug too much with the 3:54 rear especially in my area which has some rolling hills. On the flats it will easily run at 60mph but the wheels, steering and brakes being stock I feel it gets pretty twitchy over 55. I would recommend a smaller/wider tire, short pitman arm and cast iron drums if I ran over 60mph. Don't forget this is still an OLD car.

I will be switching to the smaller tire. I have the short pitman arm and the cast iron drums, many new improved parts for safety. What would you recommend for mostly flat terrain, 26 or 36 for my 29 coupe with a touring engine.