im building a drag car im used to running stock suspension i bought a kit at bowling green at the nmra race 2 yrs ago double adj. tops and solid bottoms should i switch to adj. bottoms or leave them alone i just want to plant the tires hard im welding up the torque boxes could u give me any help on making the rear more brutal to take the punishment if i switch to a trans brake any help would be fine thanks

 

I'm trying to understand... Are you referring to Upper and Lower Control arms??

What brand control arms did you purchase? I'd like to know the brand and what type of bushings they use.

What year/model is your Mustang? What other suspension modifications do you have?