Mississippi-Mud Forums

Well I thought I did.

Well can someone explain exactly how the gears work and why you have get lower or higher gears and what that means.......

At the way that I understand it if you go larger with tire hieght you would need to go with a lower gear ratio to compensate for the rotation and give you added strength. Using a reverse cut gear would raise your pinion at your differential, front and rear i think don't quote me on that one. The lower the gear ratio the faster your tire spins at a lower rpm that's why most highway gears in cars are 3.55 to 3.23. The lower the number the higher the gear and vise versus the higher the number the lower the gear. That's pretty much the jist of it if I'm wrong some one say something.

ok so if you put bigger tires without changing the gears it puts a strain on it because the thing can move the tires around and in result throws the rpm's up...which makes you weak ..right?

ok you've got some of it figured out lol i'll try and explain the difference between standars and reverse rotation. standard rotation gear which is what are in most diffs no matter if its the front diff or rear. these are low pinion meaning the pinion gear touches the ring gear below the axle centerline. now with a high pinion diff the cut on the gears has to be different because the pinion hits the ring gear above the axle centeline. the gears don't actually rotate in the reverse of a standard gear but the way the gears are made is different. just putting a reverse gear set in an axle wouldn't raise your pinion. you have to match your gears with the housing they are going in. and reason for needing lower gears with bigger tires is pretty simple as well. a bigger tire travels more distance in a single rotation than a smaller tire. so to have the same amount of leverage to turn the tire you need a lower gear ratio with a bigger tire

ok got the tire thing...what is all this about pinions and why would you want to raise a pinion?

To keep it from getting banged around so much. That would be my guess

So red if I were to use a rear axel up front, is it going to throw the raise the pinion?

why would you use a rear up front? going to make a hybrid? if its a low pinion rear then it will be a low pinion front and use standard gears. and heather high pinion axles will reduce driveshaft angles and are less prone to be crashing into rock with the pinion yoke. and in most cases the gear sets are a little stronger than standard rotation gears.

awhh...ok...and you said you were a redneck...