what would you use, how much and from where.
Would like to run car up the strip next year and dont want to leave the rear diff on the floor, if i can help it !
Car is runing over 400 bhp and i have nos which i might put on the car just for fun, dont realy need it but why not use it, its brand new and been sitting in my garage for over 9 months, all ready have uprated front diff and box so hope they will be ok, its just the rear diff ( i hope ) that i need to change or do i with this sort of power ? any help out there.