* Fits gas models.* This lift is designed to level models with factory 1-7/8" rear blocks. Models with optional factory 3-7/8" rear blocks will have a higher rake angle in the rear.* Models equipped with a Sterling axle will require wider u-bolts U9B18R. * Front and rear driveline modifications are necessary. Recommend CV joint at transfer case for some models. Call Skyjacker for details.