The factory NP242 has a 27 spline output shaft that is 1.172" in diameter, this HD SYE kit will convert the output shaft to 32 splines and increase the diameter to 1.375". As we all know more spines typically equates to more strength! Also, the new output shaft will be roughly 3" shorter, meaning you will end up with a longer driveshaft which will aid in reducing the chances of vibrations. The NP242 may be the most versatile T-case ever installed in a Jeep. It has 2WD, full-time 4WD, part-time 4WD, and 4WD low range. The four ranges, with a decent low range of 2.72:1, make it great in all kinds of terrains.
IMPORTANT NOTE: If you will be adding the new driveshaft to your order above, you will need to install the SYE first and then call us with the running length measurement so that you get the appropriate length shaft for your application.
CODE: 13322 NP 242J SYE Kit
NOTE: If ordering a custom length driveshaft with SYE, you will need to install the SYE first and then call us with your driveshaft length.
This kit is a MUST for taller lifted XJ's, YJ's, ZJ's, WJ's and TJ with a NP242 transfer case to eliminate driveline vibrations coming from the factory rear drive shaft. This kit will eliminate the need to drop your transfer case in order to avoid drive train vibrations that are caused by taller suspension lift kits. The purpose of this kit is to replace the slip yoke portion of the NP242 with a fixed-yoke in order to be able to install a CV style drive shaft assembly. This is the most complete and strongest kit available!
Estimated Installation Time: 5-7hrs
Difficulty Level: 2
Difficulty Legend
1 - Kit includes basic components.
2 - Kit includes little to no adjustable components.
3 - Kit includes many adjustable components; may require drilling/cutting.
4 - Kit includes many adjustable components; requires welding; may require drilling/cutting.
NOTE - Labor Time and Difficulty Level assumes vehicle and/or hardware is in good condition.
Customer Ratings & Reviews
Ratings Snapshot
out of 5
5
(3)
4
(0)
3
(0)
2
(0)
1
(0)
Value
4.0
Quality
5.0
Service
4.7
Would recommend this product.
100%
out of 5
5
(3)
4
(0)
3
(0)
2
(0)
1
(0)
Value
4.0
Quality
5.0
Service
4.7
Would recommend this product.
100%
3 Total Reviews
Quality product
Oscar
Location: Mesa az
Date: November 12, 2022
Lost my package in shipping but messaged them and we worked it out came in 2 days after that
Recommended
Value
4
Quality
5
Service
4
NP 242J SYE Kit.
Location: Sanger, CA
Date: May 30, 2021
This is the right way to eliminate the slip yoke. Allows you to run a double cardan joint at the transfer case. Allow for the removal of the rear driveline, without loosing the oil out of the transfer case. A life saver in case of trail damage to the rear driveline.
Recommended
Value
5
Quality
5
Service
5
Pretty much perfect
Phix
Location: California
Date: June 8, 2020
Very high-quality kit. I didn't want to do a hack and tap typical for a N242J. This was a breeze to install and instantly solved my driveline vibes.
There are just two things that could be better. 1) Better instructions, and 2) more diverse set of snap rings. I had to reuse some of the old ones because the new ones were the wrong size. The big one that holds the planetary gear set in the back was too thick. So keep that in mind and don't destroy them if you don't have to.
I decided to go with just a XJ front drive shaft in the rear. With this setup and my 3.5" lift it's a little on the short side, but good enough for now. I'll be getting a custom one once I have the angles all dialed in and the lift settles.
Recommended
Value
3
Quality
5
Service
5
3 Total Reviews
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