Rubi's are nice but with a few mods and the right line you can go just about everywhere ya want. Im running 33's open diff, on a d35 and never had a problem. Thinking your way over a trail is sometimes alot better than brute strength.
1993 YJ lifted with a 3 1/2 skyjacker, 1 3/4 front and rear lift shackles , custom made 6061 aluminum 1 3/4 body lift ,Smittybuilt front and rear 3in tube bummpers and Nerf bars, JKS front disconnects,(removed the rear track bar)Rancho 9000 shocks,400 watts of trail lights on custom mounts,a front 4X4 posilock from Quadratec to replace the vacuum engagement system.33x12.5 on black d window cragers. Corbeu Moab seats with Corbeu 4 point race belts.