Finally got my Teraflex coil lift installed and my 35's are on the Jeep!

I have 3:21 gears and, although I dont find myself itching to re gear, I'm wondering how much of a difference it would make in gas mileage? Does it help and, if so, is the difference enough to help defray the cost of gears over time?

Thanks!

 

Yea worth it will pay for itself after a year and will be lot better on trails

 

Wow. A year payout doesn't sound half bad and, given all of there other reasons to re gear, it may end up on the to do list now. Mind if I ask what gear ratio and mileage you're basing that on?

 

I've got 4:88 on 35's I'm getting 14 mpg driving sensible. I'd go 4:56 if I had to do it again

 

If Manual 4.88... Auto 5.13s if you ever plan to go up to 37s (and you probably will)

 

It's a manual. I'd love to go to 37s. One day when it's no longer my dd...

I'm sure the 4:88s are way better around town but do you find they're alright cruising down the highway at 80ish? Does it suck down fuel at higher rpms?

 

No idea. I have an auto 3.73s but all my buds with manual rigs swear by 4.88s.

 

At 70 mph I'm at 3k rpm. I've never done 80 since the gears as I think it would be 3500 rpm and mileage would be unbearable.

 

I have an auto and stock 4.10s on 35s, and the junk I have on the Jeep (see signature), I was getting 10.5-12 range around town, then after reprogramming with a Procal I now get a more comfortable highway ride due to better shift points and 12-14mpg.

I'll only regear when I install upgraded axles, after the stockers fail.

Procal is a good start with 35s, if regearing isn't on the cards

 

A year payout is pretty unrealistic. I wouldn't listen to someone that provided nothing to back it up. An increase of 2 mpg and driving roughly 12k miles a year doesn't come close to paying for a regear. Eventually it will but not that quickly. Obviously it will also depend on miles driven per year and if you can keep your foot out of the new found power, your mileage could stay the same.