im about to go to crossover/high steer...with 7 inches of lift will a regular arm work for crossover???ive heard you have to have a spacer,then i have heard you dont want on cause they are dangerous...i have heard you neeed a bent draglink and then i heard they wear out ends fast...so what do i need when i order???im about to buy a set of sky arms and knukles from 55willy so what elce do i need to buy for crossover on 7 inches of lift???