I dont really get whats going on with the ratio's. I c many people talking about them and i don't get it. Can someone just give me a short explanation of the whole ratio thing? what 4.10 and all the others and whats their importance?
Thanks very much.

 

It means that for every 3.73 or 4.10 revolutions of your drive line, your tires will have gone one revolution

 

this site has some fun stuff; its a little kiddy, but still good info

http://auto.howstuffworks.com/differential2.htm

 

Thanks for the exactness of this explanation minime. I know the idea behind lower and higher gears, but I've wondered where the gearing numbers come from.

 

also; just because I am full of useless info:

if you were wondering why its 3.73 or 4.11 vs just 3 or 4... its so that when the ring gear and pinion turn they do not always hit the same 'spot' on each other... which would cause them to wear out faster... they rotate using an 'odd' numbered ratio... if it was say 4:1 exactly, the same teeth on the gears would be constantly hitting the same place each time...

make sense? I'll see if I can find the web page I learned that from...


FOUND IT:

"Why did Engineers Pick These Weird Ring and Pinion Ratios?

The reason R&P ratios come in such odd numbers is so that the ring and pinion do not develop a regular wear pattern. If the same teeth on the pinion were always meshing the same teeth on the ring gear, they would quickly develop a regular wear pattern and the life of the R&P would be reduced. If R&P came in a 10 tooth pinion gear and a 40 tooth ring gear, the same 10 teeth would be hitting the same teeth on the ring gear every revolution. If an odd ratio is chosen, the teeth are meshing with different teeth all the time and no regular wear pattern develops. Despite this logic, R&P in even ratios such as 3.00:1, 4.00:1, 3.50:1, 4.50:1, etc exist for several axles.

"

http://www.jeeptech.com/AxleGeneral.html#weird

 

Great stuff guy's, I'm eagerly readin gthrough the details and I'm trying to figure out what the Unlimited X is equipped with.

 

Depends on what set-up you get. Bare bones stock comes with 3.21, add a tow package or just upgrade the ratio, you get 3.73. Unfortunately the 4.10's are no longer available from the factory for X & Sahara, only Rubicon.

 

I was lucky and got mine with the 4.10 gears from the factory.

 

So the 4.1 is better than the 3.73? i c more people wanting that.

 

When offroading i understand from this that 4.1 is better, since you get more power right? and wer all talking about first gear here right?