G2 Axle and Gear NP231 Slip Yoke Eliminator Kit - G/237-231SYE | 4wheelparts.com

G2 Axle and Gear NP231 Slip Yoke Eliminator Kit - G/237-231SYE

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  • G2 Axle and Gear | Part Number: G/237-231SYE
  • Replacement Yoke Type:1310 CV Style Yoke
  • Transfer Case Model:NP231
  • Fitment:Universal Fit
  • Includes New Tail Shaft:Includes New Output Shaft
  • Includes New Extension Housing:Includes New Extension Housing


This heavy duty slip yoke eliminator kit converts the standard slip yoke of a Jeep NP231 transfer case to a more reliable fixed yoke output accommodating a longer drive shaft. Drive shaft sold separately.

Customer Reviews

4.8 4.8
4 Customer ratings

Customer Images

4.0 Complete Kit - Fit well

This kit arrived quickly and was complete. It has all of the hardware necessary for a complete install. Black silicone gasket material (RTV) is recommended and Blue LockTite. The RTV and LockTite are not included, so you'll have to have some on hand. We removed our transfer case from the vehicle, which made the install fairly easy. (watch a YouTube video for helpful tips on separating the case). The kit fit the NP231D transfer case perfectly. We haven't run it yet, just ordered our new drive shafts, which you may need for your project as the T-case output shaft is shorter than the stock configuration.

from Central California |
5.0 Great deal

Great parts. I like how the case already has the seal and the bearing installed. Have not installed yet, but should go smoothly.

from Colorado |

Question & Answers

4 Answered questions

Q: Will this work with the np 231c Answer this question

A: The G/237-231SYE will not fit the NP231C rear case half. I have been told that by using the rear case half of a NP231J on the NP231C that it can be done.

Answered by Kelly from 4WP Corporate Headquarters on 02/16/2021

Q: Do you sell a similar kit for the 2002 s 10 zr2 i think its NP233c or 231HD Answer this question

A: No we do not at this time.

Answered by Kelly from 4WP Corporate Headquarters on 02/16/2021

Q: Will this fit on 2002 chev s10 zr2 v6 4.3 l Answer this question

A: No, this fits NP231/231J transfer cases only.

Answered by Mario from Compton, CA on 02/12/2021

Q: will this work with a 231J Answer this question

A: Yes it will.

Answered by Kelly from 4WP Corporate Headquarters on 10/20/2020


G2 Axle & Gear uses the strongest and latest generation materials to manufacture products capable of handling heavy loads. When it comes to axle assemblies, core lockers, driveshafts and sway bars, G2 is the first name in durability and reliability. Off-roading can heap punishment on a Jeep and G2's laser-cut components offer superior handling on challenging terrain and on-road drives. Parts are easy to install and easy to service and above all, they remain operational in adverse environments. Shop G2 Axle and Gear Now