Which Rear Shafts and Splines to buy? (Confused)
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JK Enthusiast
Joined: Apr 2012
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From: Fort Worth, Texas
Which Rear Shafts and Splines to buy? (Confused)
I am looking to replace the rear axle shafts in my 2013 jk sport D44 axle.
I have to say I am really confused
about which shafts to go with and what spline count to use 
...and I know I want to get the bearings already pressed on. I am already re-geared to 4.88s as I am running 37s...
What company should I go with?
What spline count is required to work with my stock internals and G2 4.88s?
I found over @ Northridge that Ten Factory has a setup for the rear which is 30 spline Chromoly...would this be a good choice?
Ten Factory JK Non-Rubicon, 30 Spline, Dana 44 Rear Chromoly Axle Kit - TENMG22156-PRESSBEARING
Would appreciate any help I can get!
I have to say I am really confused
about which shafts to go with and what spline count to use ...and I know I want to get the bearings already pressed on. I am already re-geared to 4.88s as I am running 37s...What company should I go with?
What spline count is required to work with my stock internals and G2 4.88s?
I found over @ Northridge that Ten Factory has a setup for the rear which is 30 spline Chromoly...would this be a good choice?
Ten Factory JK Non-Rubicon, 30 Spline, Dana 44 Rear Chromoly Axle Kit - TENMG22156-PRESSBEARING
Would appreciate any help I can get!
Last edited by devwil68; Apr 25, 2015 at 07:11 AM.
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
Some people like to move up to 35 spline (with 35spline lockers), others stay with 30 spline and use the stocks as trail spares. I stayed with 30 spline, but I guess it depends on use/weight/etc.
This info may have changed since I was looking a year and a half ago, but here is what I found for the rear 30 spline shafts:
Ten Factory and G2 - 10 year, flanges are covered.
Nitro - 5 year, flanges and bent/twisted shafts not covered. (Shaft has to break in two.)
Alloy USA - 10 year, didn't get a reply from them on the flanges.
Yukon - Lifetime warranty for mfg defects. 'Verbal' that trail damage is covered. But, they were cut to fit, not specific lengths for the JK.
TenFactory - 4140
G2 - 4140
AlloyUSA - 4140 or 4340 (they weren't very clear on this for the JK application)
Yukon - 4340
Nitro - 4130
And there are also differences in single/dual/triple bolt patterns.
This info may have changed since I was looking a year and a half ago, but here is what I found for the rear 30 spline shafts:
Ten Factory and G2 - 10 year, flanges are covered.
Nitro - 5 year, flanges and bent/twisted shafts not covered. (Shaft has to break in two.)
Alloy USA - 10 year, didn't get a reply from them on the flanges.
Yukon - Lifetime warranty for mfg defects. 'Verbal' that trail damage is covered. But, they were cut to fit, not specific lengths for the JK.
TenFactory - 4140
G2 - 4140
AlloyUSA - 4140 or 4340 (they weren't very clear on this for the JK application)
Yukon - 4340
Nitro - 4130
And there are also differences in single/dual/triple bolt patterns.
Last edited by nthinuf; Apr 26, 2015 at 12:14 PM.
JK Junkie
Joined: Jun 2013
Posts: 3,697
Likes: 2
From: Grosse Pointe, MI
Some people like to move up to 35 spline, others stay with 30 spline and use the stocks as trail spares. I stayed with 30 spline, but I guess it depends on use/weight/etc. This info may have changed since I was looking a year and a half ago, but here is what I found for the rear 30 spline shafts: Ten Factory and G2 - 10 year, flanges are covered. Nitro - 5 year, flanges and bent/twisted shafts not covered. (Shaft has to break in two.) Alloy USA - 10 year, didn't get a reply from them on the flanges. Yukon - Lifetime warranty for mfg defects. 'Verbal' that trail damage is covered. But, they were cut to fit, not specific lengths for the JK. TenFactory - 4140 G2 - 4140 AlloyUSA - 4140 or 4340 (they weren't very clear on this for the JK application) Yukon - 4340 Nitro - 4130 And there are also differences in single/dual/triple bolt patterns.
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JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
Yep, I should have mentioned that I was thinking 35 spline arb at the time, and this subject usually comes up in conjunction with a "which locker should I get" question.