I have a six inch skyjacker lift and it fits 35" mud terrains nicely. The consensus is 35" is about the limits of the TTB front end suspension. Anything larger and your going to chew through ball joints, and tie rods. It just takes a lot of force to turn those big ass tires.... and the suspension/steering factory components were not designed for that abuse. If your even on the fence about going larger than 35" than go straight to a solid front axel.... then the sky is the limit.
I put on my skyjacker in the garage with hand tools. The hardest part to cutting rivets off the frame. You are essentially removing the front suspension … this is the time to replace all ball joints, Tie rods, axel pivot bushings, and your radius arm bushings.
after the lift my 5.8l had very poor performance at take off …… I re-geared to 4:56 and she takes off like a beast ….. but you pay the price at the pump. Before lift, gears, and bigger ties she was averaging around 13mpg …. after the lift 9mpg is a great day on the interstate.
This is on my 1993 bronco that is essentially a weekend toy.
I kept my 1996 all stock. It has the 302 behind a 5 speed stick … and can get close to 16 or 17mpg. That is my daily driver.