cbr600rx7

Has any one out there done it? And was it worth it?

Daniejw

If you're going to a 35" tire or bigger. I'd recommend going to to a 4.56 or similar. If you're going to spend the money for such a small gear change. Might as well make it worth it.

cmbowles25

What he said. I went 3.55 to 4.10 with 33" tires and when I get new tires they will be 35" I know I'm gonna wish I went 4.56

Cj7jeepoffroad

I have 3.55's and 35" tires, 5.0 handles them fine, IMO I'd go with a tuner to retrieve lost performance from 35's before I went through the hassle of changing gears.

cbr600rx7

I am looking to increase performance from 1500-3000 rpms. Especially on hills when unloaded and when towing. I am currently running 275/65R18 duratracs (32.1x11) and will probably only upgrade to 285/70R17s (33x11.50) down the road.

4.56s might be a little much since I don't plan on running any thing bigger then a 33.

And I am not sure how much tuning will improve performance in the 1500-3000 rpm range.

32krazy!

if you do the gear swap i might be interested in the 3.73 gears.

1stTruckGuy

A 4.10 behind the 5.0 is equivalent to 3.73 behind the 5.4 (with 6 speed) when it comes to power at lower rpm. The 5.0, even with a tune, is very weak below 3k rpm when towing unless you live in Kansas. I had 5* tune on my 12 5.0 crew and it improved throttle response and shifting but with a load behind the truck it was not as noticeable. I had 3.55 gears and would have gone to 4.10 had I kept the truck. Keep in mind I tow in the mountains of the Pacific Northwest so you might fair better with just a tune at lower altitude and on flat ground.

Bryan Ebert

I have 4:10 in my 07 5.4 4x4. I tow in elevations of 6-9k feet with 325/60 18. I used the edge programmer on 1st performance setting. It has done wonders for this truck,only bad thing I get almost same mpg towing or not. All stock other than gears,programmer and Harley Davidson exhaust factory.

sigma pi

I am on 3.73 on 35s

It came stock with 3.73s and I wouldnt re gear to 4.11s

cbr600rx7

You wouldn't re gear your 3.73s or you wouldn't re gear to 4.10s?