430 or 456 gears

[steele86]

any one running 37's with 430 or 456 gears whats the rpms

[JSchuricht]

4.30 would put you closest to a 3.73 with stock tires. You would be about 2k RPM at 70MPH. If you plan on going larger, towing heavy or crawling at low speeds then go with the 4.56, otherwise the 4.30 would be perfect.

[Tj Krawler]

4.30s if you don't tow. If you tow often/heavy go 4.56. At 70 MPH, with 37s 4.56 would only be 100 RPM higher. With 4.30s, if you ever need to go back to stock, you could still DD it.

[steele86]

I dont tow much

[maddawg89]

Not to hack your post OP, but what would the has mileage be like with 4:30's running 35 or 37's?

[7.3550Duty]

Im running 37s and 4.56s and at 70 im right at 2k rpms, so its not too bad

[steele86]

Is the mpg with 430s and 37 close to the same as 373s and 31?

[Macon]

No. Not at all.

[steele86]

How much less is it

[Macon]

36.

The point being that size is a really small factor of the many things that regard mileage.