different gears in the front and rear diffs?

J

joeyschribar

NAXJA Forum User

Location

Edmonton

• Feb 17, 2008

• #1

just wondering if i can run different gear ratio's
3.55 on the rear and 3.07 on the front
i plan to run 3.55 front and rear but would swap each axle at a time each weekend
if i only use rear wheel drive on my t-case would it be ok to do so??
thanks for your time!

 

srimes

NAXJA Forum User

Location

Cabot, AR

• Feb 17, 2008

• #2

yup

 

johnnyc

NAXJA Forum User

NAXJA Member

Location

La Habra, CA

• Feb 17, 2008

• #3

As long as you don't put it in 4WD.

To be on the safe side, you could remove your front driveshaft.

 

J

joeyschribar

NAXJA Forum User

Location

Edmonton

• Feb 17, 2008

• #4

all i need to know thanks guys!
i got the axle out now and no i.d tag, it came outta an 88 or so XJ wagoneer model with a 4.0 inline six and auto tranny, it should be 3.55, i hope im correct!

 

E

Euclid

NAXJA Forum User

Location

Austin, TX

• Feb 17, 2008

• #5

count the splines

 

J

joeyschribar

NAXJA Forum User

Location

Edmonton

• Feb 17, 2008

• #6

the splines on the yoke output shaft, or on the ring gear, or spider gear?
once its counted, what number means what?

 

L

lawsoncl

NAXJA Forum User

Location

North Idaho

• Feb 17, 2008

• #7

joeyschribar said:

all i need to know thanks guys!
i got the axle out now and no i.d tag, it came outta an 88 or so XJ wagoneer model with a 4.0 inline six and auto tranny, it should be 3.55, i hope im correct!

Click to expand...

Assuming it's a Dana axle, there should be a BOM stamped in the passenger tube, facing aft. You can look it up at http://www2.dana.com/expert/wc.dll?DSD~deabill~4~ to see what gears it started with. Or just count the teeth on the pinion and ring gear if you're pulling the cover.

 

E

exjay33

NAXJA Forum User

Location

pa

• Feb 17, 2008

• #8

If you have the cover off count the ring and pinion then divide ring by the pinion then you have your ratio.