Gear swap

[GbRunner]

Hello,
I did a couple searches and nothing showed up that satisfied me. I have 33's now with my stock 4.30 gear ratio (elocker from the factory). I obviously lost some power from my stock tire size. I want to put 35's on and I dont think 4.30 will cut it on the highway. What my questions is, are 4.30 as high as you can go with my rear diff?
Second question I have is, your changing the gear ratio in the rear, can you change the gear ratio in the front diff or would I have to get a whole new diff?
Thanks for your time,
Chris

 

[rdgt4r]

4.56/ 4.88's will do it just fine. check out Originator of Rock Crawling (since 1994) | Marlin Crawler, Inc.
they have good info. And yes it is very best to do both front and rear in the same ratio.

 

[brian2sun]

The front and rear MUST be the same ratio or you will grenade your 4WD in seconds after the first use!! I have 4.88s and 33s and I wouldn't run 35s with anything less than 4.88s. 5.29s would be optimal. I do 3K rpms at 80 mph on the freeway, 5.29s and 35s will be very close to that.

And yes, you can re gear both of your diffs, figure about $700-800 per diff. If you can't afford it, you could just regear the back for now, but don't ever put it in 4x4 until you do the front and don't loan your truck out to anyone w/o explaining that to them.

 

[GbRunner]

I knew I had to re-gear both at the same time. I didnt think it would be that expensive to do the job. I might just stick with 33's and not bother with the hassle.

 

[theizzardking]

I knew I had to re-gear both at the same time. I didnt think it would be that expensive to do the job. I might just stick with 33's and not bother with the hassle.

it's not if you can set the them your self, the gears themselves are like $200-300 bucks

 

[theizzardking]

also check here and go to the tech section of all sorts of calculators, play around with things and see what you want

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