I know that this thread sounds like it should be in the tire and wheel forum. Let me explain. How much do your 35's weigh, if you have them? The reason i ask is because mine weigh in at about 80 pounds, just tires. That would mean I probably have around a 100 pounds at each axle hub.

Do heavier 35's justify a lower gear ratio, such as a 4.88 rather than a 4.56? Does it all come down to diameter? I was under the impression that it really was weight and since weight is pretty much directly related to the diameter, I thought this might be an interesting topic to explore.

I'm getting 4.88's for my 35's now with the intention of 37's in the next year sometime.

 

the title probably should have been what width or what weight. Sorry about that. duh.....

 

A heavier tire wioll also result in a decrease in your effective gear ratio. I'm not sure how much my 35s weigh, but I can't imagine it's 80 pounds. Either way, with heavier tires, you should also look into brake upgrades.

 

Go to TireRack & look up the SPECS for your particular brand, model, & size of tire.

The weight of a tire has NO effect on final drive ratio. Only the height. And the weight of the tire has no relevance to the hubs, since the hub never supports the tire's weight. The opposite: the tires support everything.

Also: weight is NOT directly proportional to diameter. It's influenced by tread width, tread depth, rim size, & husk construction. Combined, those factors have more impact on weight than diameter alone.

 

When I shipped my 35x12.5x17 BFG MT on 17" OEM rims - they weighed 96 lbs each.

 

www.procomptires.com click on extreme A/T. I have part # 58035 the 325/65/18's. They are 13.50's, and weigh 77lbs alone without wheels.

I know that the weight and diameter aren't REALLY directly proportional. I'm just saying that generally speaking, most people with let's say 40's have got one real stinkin' heavy tire. I didn't mean any more than that.

My stock brakes actually do a pretty good job of stopping these tires. I'm going to upgrade new pads when the stockers wear, but they are working great right now.


SteveG83, where in Memphis are you?

You also seem to know quite alot about gears and powertrain. Wanna help me install some gears?

 

I'm in Arlington, and I'm a pro, so: yes, I can install your gears for you.

 

I'm just south of you in Collierville. Where do you work?

 

Chez Moi.










(my house)

I'll e-mail you my cell #.