I too have the Trail Tough Kit. I have the YJ (5-leaf) SPOA, with missing links front and rear. My Zuk is primary a DD. I have had my TT kit for about two years, and I have absolutely no problems with it. I have a '91 EFI, and typically run at 55 to 70 on the highway, and have ran at 80 MPH (down hill, w/tail wind). An excellent kit, totally complete and everything fit the first time,
Wayne