i have the stock differential in and dont kno to much about it and what i have to do to change it and which one should i get?

 

What do you want out of it? How much power are you gonna throw at it? What type of use does the truck get. For now I'll assume that since you live in socal and havent mentioned any modified suspension that you keep it on the street and since you have a turbo you're looking to make it quicker. For only street use I would recommend a limited slip so you can leave two black streaks and get more traction when you want. Taller gears will put more load on the engine and allow you to get more boost out of that turbo, up until a certain point, then the gears might get too high. What gears do you currently have? If it's 4wd you will need to do front and rear diffs.

 

the truck will be makin bout 500 hp its a dd and the truck is lowered. and i want a stronger and more responsive dtrian. so what exactly should i get and from where?

 

Detroit tuetrac

 

truetrac

 

Are you asking about gears as well? W/ what you have, i would say 3.23 or 3.73 to push that turbo.

 

the 4.10's and truetrac really woke mine up from 3.73's. I havent dealt much with the turbo applications but 3.73's or 4.10's would probaly be good. All my buddies with blown mustangs put 4.10's in them. It also depends on if your looking for 1/4 mile times or just how fast you can go on the interstate.

 

ok thanx guys but whats the diff between 4.10 and 3.73?

 

uh well 4.10's are lower that 3.73's, better acceleration, worse gas mileage in most cases, runs about 300 rpm higher at 70, some claim better city mileage.