If it's not a rubicon that I believe you have a dana 35 rear and a 30 front...
As far as the gearing, that depends on your engine. I'm sure another TJ guru will post up and tell you![]()
Ok guys im new to the game so this queation may sound a little noobish.
Is there a way to tell what axels and gears you have by running the numbers? I have an 03 TJ and I know they are stock danas but that is all I know. The numbers are all clearly legible
If it's not a rubicon that I believe you have a dana 35 rear and a 30 front...
As far as the gearing, that depends on your engine. I'm sure another TJ guru will post up and tell you![]()
1980 CJ7 350sbc, T-18, Dana 20
if you have a 6 cyl with manual tranny, its probably geared at 3.73, auto probably 4.10, 4 cyl probaly 4.10 as well. hopefully its not a 3.07, had that in my old yj and it lost 5th gear after putting on 31 inch tires
1990 YJ, Sold
1998 TJ, traded
2009 JK Rubicon Unlimited
What model is your jeep?
The easiest way is to go out and look at the axles.
If your jeep is a non-rubicon model, you have a dana 30 front. Your rear will either be a dana 35 or a dana 44. Rubicons had D44's front and rear. Some saharas and sports had a d44 as an option, some had a D35. X's came with a D35. The easiest way to tell... most newer D35's have a rubber fill plug, not a metallic one.
Gears, if it's a non-rubicon you've either got 3.07 or 3.73 gears. I don't believe any model but the Rubicon came with 4.10 gearing except for the 4 bangers.
There should be a tag on each differential housing. It will be attached by bolts that hold the cover to the body. It's going to have a list of numbers and letters on it.
Somewhere on that tag will either be a 307, 373 or 410 (maybe 411).
there is a way to do it by lifting your truck and spinning you wheels a certain number of times, then counting the revolutions of your driveshaft..not sure what the formula was but i read it on jeep forum a while back, but if its stock you can get your vin and get a factory printout of your jeep and it will tell you
" if you can read this, thank a teacher.
If you are reading it in English, thank a Soldier"
I READ TODD DID
Dana 30 (181 mm) - 1997-2006
* Front axle used on all TJs except the Rubicon model
* Stock gear ratio options = 3.07, 3.55, 3.73, 4.10, 4.56
* Carrier break = 3.55 / 3.73
* Open carrier - no Trac-Lok limited slip option
* Ring gear diameter = 7.125"
* Ring gear bolts = (10) 3/8 x 20 RH
* Low pinion (short pinion)
* Pinion shaft diameter = 1.376"
* Pinion shaft spline count = 26
* Axle shaft diameter = 1.16"
* Axle shaft spline count = 27 both inner and outer
* Axle shaft u-joints = 5-760x / 5-297x
* WMS-WMS = approximately 60.5"
* 5 on 4.5" bolt pattern
---------------------------------------------------------------------
Dana 35c (194mm) - 1997-2006
* Standard rear axle used on all TJs except the Rubicon model
* Stock gear ratio options = 3.07, 3.55, 3.73, 4.10, 4.56
* Carrier break = 3.31 / 3.55
* Optional Trac-Lok limited slip differential
* Ring gear diameter = 7.5625"
* Ring gear bolts = (8) 3/8 x 24 RH - NOTE: 7/16" x 20 RH used on later model TJs
* Low pinion
* Pinion shaft diameter = 1.406"
* Pinion shaft spline count = 26
* Axle shaft diameter = 1.16"
* Axle shaft spline count = 27
* WMS-WMS = approximately 60.5"
* 5 on 4.5" bolt pattern
* Rubber pressed-in fill plug
---------------------------------------------------------------------
Dana 44 (216mm) - 1997-2006
* Optional rear axle used on 6 cyl models except the Rubicon model
* Stock gear ratio options - 3.55 (97 only), 3.73
* Carrier Break = 3.73/3.92
* Standard Trac-Lok limited slip differential on early model TJs / Optional on later model TJs
* Ring gear diameter = 8.5"
* Ring gear bolts = (10) 3/8 x 24 RH - Note: 7/16" x 20 RH used on later model TJs
* Low pinion
* Pinion shaft diameter = 1.376"
* Pinion shaft spline count = 26
* Axle shaft diameter = 1.30"
* Axle shaft spline count = 30
* WMS-WMS = approximately 60.5"
* 5 on 4.5" bolt pattern
* Threaded 3/8" fill plug
---------------------------------------------------------------------
Dana 44 (216 mm) Rubicon- 2003-2006
* Standard front axle used on all Rubicon model TJs
* 4.10 gears
* Tru-Lok selectable pneumatic locker - open differential when unlocked
* Ring gear diameter = 8.5"
* Ring gear bolts = (10) 7/16" x ??
* Low pinion
* Pinion shaft diameter = 1.376"
* Pinion shaft spline count = 26
* Axle shaft diameter = 1.30"
* Axle shaft spline count = 30 inner / 27 outer
* Axle shaft u-joints = 5-760x / 5-297x
* WMS-WMS = approximately 60.5"
* 5 on 4.5" bolt pattern
Note: The outer axle shafts, unit bearings (hubs), knuckles, and brakes are the same as those found on the TJ D30.
---------------------------------------------------------------------
Dana 44 (216 mm) Rubicon - 2003-2006
* Standard rear axle used on all Rubicon model TJs
* 4.10 gears
* Tru-Lok selectable pneumatic locker - limited slip differential when unlocked
* Ring gear diameter = 8.5"
* Ring gear bolts = (10) 7/16" x ??
* Low pinion
* Pinion shaft diameter = 1.376"
* Pinion shaft spline count = 26
* Axle shaft diameter = 1.30"
* Axle shaft spline count = 30
* WMS-WMS = approximately 60.5"
* 5 on 4.5" bolt pattern
" if you can read this, thank a teacher.
If you are reading it in English, thank a Soldier"
I READ TODD DID
hope that helps...
" if you can read this, thank a teacher.
If you are reading it in English, thank a Soldier"
I READ TODD DID
Thanks for the responses guys looks like 307s. options? find rubicons for it change these out with 410s and lockers? I have lots of mechanical but lack certian exp. I have to be able to do it myself. Also need the most cost effective way to do it due to this is my DD so any suggestions are appreciated
yea easiest options would be to grab a set of axles out of a rubi for d 44's with 4.10's or probably more likely to find and old/wrecked 4 banger they only had d30/d35 like you but had 4.10 gears
"Some people wonder their whole lives if they will ever make a difference. Marines don't have that problem." Pres. Ronald Reagan
Army vs Marines = http://www.youtube.com/watch?v=_2M7ckkxQLU
anything that says Rubicon on it is $$$pricey$$$ so there must be gold plated lining in the housing.
1990 YJ, Sold
1998 TJ, traded
2009 JK Rubicon Unlimited
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