I have a 94 ford f150 xlt it has 4x4 ,well i just got a new 8.8 rear end cause mine broke. anyway my friends installed it for me. well my dash light is on for the abs i dont know whats wrong if the rear end has ti or not. it probally dont. but also this rear end doesnt have the speedometer hook up, so i dont have a speedometer. also my overdrive light is blinking on and off i dont know why, i need some help with that. also im not sure if this rear end is for a 4x4 vehicle or what gears are in it, but they say it has 3.55 gears in it, i dont know if it will work with my 4x4 and not tear up my trabnsfer case, i just dont want to put it in 4x4 and it break so in neeed somme help.