If your going to the expense of buying a trans brake for drag racing replace the front cast iron drum so you eliminate the potential grenade If you do that you don't realy need the low band apply valve body any more as a safety factor,correct? Ask Griner if his trans. brake valve body with low band apply is slower or better than his non low band apply trans. brake valve body I remember seeing posts on here by racers that had tried both LBA and non LBA valve bodys, all of the ones I remember where slower with LBA