Image 1 of 2
Image 2 of 2
Wrangler YJ - Transfer Case Linkage Kit
Often referred to by Jeep owners as the “Azzy Linkage,” this transfer case linkage upgrade for the 1987–1996 Jeep Wrangler YJ replaces the factory NP231 linkage to fix common problems like difficulty shifting into 4 Low, popping out of 4WD, and loose or misaligned factory linkage. The Azzy Linkage was invented, designed, and is manufactured by Azzy’s Design Works. Many Jeep owners searching for a “YJ transfer case linkage upgrade,” “NP231 linkage fix,” or a solution for a Wrangler that won’t stay in 4WD are specifically looking for the Azzy Linkage.
Tired of your hard-to-adjust Rube Goldberg contraption that never seems to let you put your Jeep® in 4L?
Does your Wrangler pop out of 4H when you need it most?
We got tired of fighting the factory linkage on our own YJ builds, so we engineered a complete replacement kit that eliminates the sloppy factory bell-crank setup and restores solid, consistent transfer case engagement.
This kit replaces the entire problematic factory operation.
NO DRILLING OR WELDING REQUIRED.
Tested to fit most 1987–1996 Jeep Wrangler YJ NP231 transfer case setups, including common transmission combinations such as AW4, AX15, BA5, and BA10. Our officially licensed MOPAR® kit includes additional hardware to help accommodate engine swaps, transmission conversions, and custom builds. Some 4-cylinder, 5-speed installations may require additional parts depending on configuration.
Important: This kit is specifically designed for 1987–1996 Jeep Wrangler YJ models.
It does NOT fit 1997–2006 Jeep Wrangler TJ.
As always, look for the MOPAR® hologram on the packaging, and patriotic branding to ensure you’re getting a genuine Azzy’s Design Works Officially Licensed Jeep® linkage. Please report any copied versions to the platform where they are being sold.
___
Q: Who makes the Azzy linkage for 1987–1996 Jeep Wrangler YJ?
A: Azzy’s Design Works is the original designer and current manufacturer of the Azzy Linkage. Other versions on the market are imported copies of our original design. The Azzy Linkage was invented, engineered, and is produced by Azzy’s Design Works.
Often referred to by Jeep owners as the “Azzy Linkage,” this transfer case linkage upgrade for the 1987–1996 Jeep Wrangler YJ replaces the factory NP231 linkage to fix common problems like difficulty shifting into 4 Low, popping out of 4WD, and loose or misaligned factory linkage. The Azzy Linkage was invented, designed, and is manufactured by Azzy’s Design Works. Many Jeep owners searching for a “YJ transfer case linkage upgrade,” “NP231 linkage fix,” or a solution for a Wrangler that won’t stay in 4WD are specifically looking for the Azzy Linkage.
Tired of your hard-to-adjust Rube Goldberg contraption that never seems to let you put your Jeep® in 4L?
Does your Wrangler pop out of 4H when you need it most?
We got tired of fighting the factory linkage on our own YJ builds, so we engineered a complete replacement kit that eliminates the sloppy factory bell-crank setup and restores solid, consistent transfer case engagement.
This kit replaces the entire problematic factory operation.
NO DRILLING OR WELDING REQUIRED.
Tested to fit most 1987–1996 Jeep Wrangler YJ NP231 transfer case setups, including common transmission combinations such as AW4, AX15, BA5, and BA10. Our officially licensed MOPAR® kit includes additional hardware to help accommodate engine swaps, transmission conversions, and custom builds. Some 4-cylinder, 5-speed installations may require additional parts depending on configuration.
Important: This kit is specifically designed for 1987–1996 Jeep Wrangler YJ models.
It does NOT fit 1997–2006 Jeep Wrangler TJ.
As always, look for the MOPAR® hologram on the packaging, and patriotic branding to ensure you’re getting a genuine Azzy’s Design Works Officially Licensed Jeep® linkage. Please report any copied versions to the platform where they are being sold.
___
Q: Who makes the Azzy linkage for 1987–1996 Jeep Wrangler YJ?
A: Azzy’s Design Works is the original designer and current manufacturer of the Azzy Linkage. Other versions on the market are imported copies of our original design. The Azzy Linkage was invented, engineered, and is produced by Azzy’s Design Works.
Our TJ kit has been discontinued. This is for the YJ ONLY.
See our XJ kit for XJ / MJ installs.
CAUTION
This hardware is for use by experienced mechanics only. We take no responsibility for the modification of your vehicle by your hands or those of a 3rd party. Please don't do anything stupid and get hurt with our products, we like our customers!
EXTRA INFO
Need spare parts? We now have them available to purchase.
Need an install video? Check it out here.
Questions? Check out our FAQ.