what gear ratio do you have

[redranger4.0]

Hope that is a typo. guess there is not that much difference but still would feel like the rear is pushin the front, or atleast causing a binding.

Nope not a typo. And you can have upto a 5% difference between gears. That is only a .05% difference. and the front will pull the rear, not the other way around.

 

[racinjason68]

4.88 front
4.86 rear

I agree with the difference, but NOT the front will pull the rear.


The rear will have completed a revolution when the rear drive shaft turns 4.86 and the front will have to turn .02 more revs befor the front makes a full turn. So the rear will be "pushin" the front.

Also read that some chrysler products come out with 4.10 front and 4.11 rear.... Front helps pull to keep vehicle "track" properly when in 4x4.


My '79 bronco come with 4.09 front and 4.10 in rear. front tires will turn just a hair faster.

 

[redranger4.0]

I agree with the difference, but NOT the front will pull the rear.


The rear will have completed a revolution when the rear drive shaft turns 4.86 and the front will have to turn .02 more revs befor the front makes a full turn. So the rear will be "pushin" the front.

Also read that some chrysler products come out with 4.10 front and 4.11 rear.... Front helps pull to keep vehicle "track" properly when in 4x4.


My '79 bronco come with 4.09 front and 4.10 in rear. front tires will turn just a hair faster.

Yea I had to run it through my head again. You are right, but .02 revolutions you wont notice. Specially on my truck which is trail only.

 

[racinjason68]

Cool glad you got it...

 

[mattthemechanic]

Before I traded in my 91 Explorer Sport (used as a scrap metal hauling rig for the shop) under the Cash for Clunkers (got $4500 for a $5 truck) I had 3.73's. She was good for 5 years before that though....

 

[99splodersport]

i know this is an old post but i have 4:10s limited slip in my 99 sport. i have 31s now but got some 33s to mount today what do you think my gas mileage will be like?