I have the rize ordered and are looking at 37's to put underneath. There aint no way I am leaving the 3.73's under there with them big dudes on so I need a little help. I have read that I need the 4.56's? Is that right? I do decent deal of highway driving, so i dont want them too low so i can get some decent milage. Also, I need to know a place to buy these gears. I have looked all over the internet and cannot find a place. Thumper, I know your out there buddy.

 

I'd go with 4.56's or 4.88's. If do a lot of driving in 65mph or 70mph zones and don't tow a lot go with the 4.56's.

 

If you do a lot of highway driving, I'd go with the 4.56s. However if you think you'll ever go bigger than the 37s than go with the 4.88s and just go the speed limit. We're talking about heavy tires, horrible aerodynamics, highway speeds, 6000# truck, you're never going to get good gas mileage.

Isn't there a place called National Drivetrain or something. I can't remember. Are you going to be doing them yourself? If not, I'd buy them from the shop that is going to be installing them. They won't warranty it and they'll just charge more on the install. I had my gears done at 4WP so sorry I can't be more help.

PS: I'm running 2100 RPMs at 70 mph.

 

I can not personally vouch for this company since I have not oredered yet. However, this is who I am going to use. (Sorry, don't know how to post link).
www.Jawsgear.com. For 4.56 gears(2wd.) $205.00 and add $20.00 if it is a 9 inch rear end.