I tried to avoid this by limiting my lift to 3.5" for my XJ. Rubicon Express lift was much higher than advertised. I had bad driveline vibration. This kit was not bad to install, plenty of YouTube videos. Fixed problem without even shimming the rear end. Using front driveshaft for the rear until new Tom Woods shaft arrives. Just do it, do not use a drop kit or shim your slip yoke system. Do it right.

Product works amazing and shipped fast. Very happy. Only downside is I lost the ability to use my speedometer on my 05 lj. I'm sure there's a part to fix that issue but be aware that there's more to the installation afterwards

Got my products on time and build quality was great but I have to say the customer service was outstanding I had a mishap on one my parts and they took care of me right away.

Solid kit. Works.

I bought the NP231 SYE kit, along with a double cardan custom driveline and adjustable upper control arms for my lifted 2003 Jeep Wrangle TJ. The products shipped very quickly. Everything you needed for the install was included. This combination of parts was exactly what I needed to cure the drivetrain vibration in my lifted jeep.
The staff at Tom Woods were very helpful at time of purchase to assist me to get what I needed. I would definitely recommend them to anyone with a lifted jeep that is having drivetrain vibration.