GEAR ratio?

[strokin07]

Ok guys I just installed a set 37-13.50r22 Toyo's on my truck. I went from a 325-50r22(34.5"). My truck currently has 3.73 gears and my question is what would be the best ratio to go to. 4.10 or 4.30? Right now I am at about 1700 doing 70mph. I would like to be at about 2000rpm at 70mph. I don't tow too often but I tow heavy and I run a 250hp tune so I would like to regain some gear and not kill my transmission.

Any experience with this would be superb. Thanks in advance.

[08stroker250]

Most guys with 37's say that 4.30's are too low. 4.10's would probably be best. My only concern would be that going from 3.73's to 4.10's may not be worth it.

[strokin07]

Yeah I don't think I would do 4.10s. Does anyone have this setup?

[08stroker250]

I would be 100% sure before you do anything. Swapping isn't cheap.

[strokin07]

Yeah most definitely!

[strokin07]

I remember seeing a guy on here with a black CCSB, black wheels with 37s I think he has king coilovers up front. I saw he had 4.30 gears. Does anyone know who I am referring to? I saw pics of him with a big a** toy hauled fifth wheel.

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[strokin07]

bUMPPPPPPP

[ROCKETW19]

good question I have similar concern. I have 40s and spartan 210 tune. my gass dropped from 14 to 11 on lie-o-meter.
seem a bit slower off line also even though i dont hammer down very often.

[strokin07]

Yeah I just need to know what RPMs ill be turning at 70 mph with 37s and 4.30s. That's all lol!!!!!!!

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[ROCKETW19]

Originally Posted by strokin07

Yeah I just need to know what RPMs ill be turning at 70 mph with 37s and 4.30s. That's all lol!!!!!!!

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not sure but i think a shop that does this will have all the info you need. now dont quote me on that but thats my guess.