Which differential should i buy there is alot of them out there,not going make more than 400 hp when im done

 

I am staying with the 28 spline and 410 gears

 

Honestly. Im guessing you're talking about the carrier.

If ur gonna stay 28 spline get an Eaton 4-clutch trac lock. It has four clutches instead of the stock three clutches. Hooks up better and lasts a lot longer.

 

if your upgrading rear i dont know why you would stick with 28 spline. go 31