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Discussion Starter · #1 ·
Do you guys think that gears of 307 with 35 inch tire is to lower and the 4bt will struggle?
 

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Do you guys think that gears of 307 with 35 inch tire is to lower and the 4bt will struggle?
Depends on the vehicle...jeep, no....1 ton 4x4, yes.
 

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Discussion Starter · #3 ·
it's going to be in a 1970 Bronco
 

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Most tires are not a true 35'' so it will also depend on your trans auto or manual ,will be great on fuel milage.

Scott
 

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Discussion Starter · #5 ·
i am planning to put the zf 5.
 

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I would think it should be okay. If it is a little lazy, that can be fixed easy enough with some tuning.
 

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The engine probably wont struggle with it, but that might be a little tall. You'll only be turning 1400-some RPM at 65. Well below the 1600-1800 sweet spot. With a new governor spring youd be geared to do over 140.... :massey: [Yes, I know, no way in hell a brick like an EB will do 140].


Gear Calculator: http://www.izook.com/gearcalc.htm
 

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Discussion Starter · #8 ·
Yeah but how cool would it be to see a EB do 140 of course there is know where to do it but that would be awesome.
 

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I don't think it's to low.

I put 4.88 gears with a NV4500 trans in my jeep. I can still go 72 MPH (on good roads). If your going to be of roading I'n go with 3.77 or lowwer. Just me and my prefferences. Good luck.
 
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