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Re: Final drive ratio



Guys:

I don't know about this discussion of a 345 turning 4500 RPM at 65 MPH.

My references tell me that the IH 345 will only go to 3800 RPM before
the springs just don't have enough poop to prevent valve float. My
research tells me if you use Chevy or Dodge springs, you can run it to
5000 without encountering valve float. But those springs are almost
twice the force at 1" open than the original IHs.

Somebody go look up in one of the available FAQs what gearset you'd have
to have with 30" tires to be turning 4500 RPM at 65 MPH. That must be
the 5:88s in the "big" 44 housing.

Tom H.




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