putting a 9 in that is very EZ done them you need about 61 from hub to hub if my brain is working the 10 bolt with work can hold alot of power.set of caltracks and some stickiy d.o.t tires i use BF goodrich i had Hoosier one time there were quick time tires .i rolled in to the gas. car walked out side ways not a big deal the car was known for this but was hopping around like on gravel pulled over most all tread was gone after a phone call to Hoosier they told me i over powered the tire (no kidding) i know they can make good tries but not sold on there street tire i will stick with BF and i do try to put abit of power threw them have used them for many years on the street they do..... not chunk out...