Today i flipped my rustler and brock the shock tower along with the shock cap on the top of the rear shock. My Nitro rustler is completely stock. I am going to buy a powerline aluminum shock tower off tower, but i don't know what kind of cap to buy? Are the shocks on the rear of the rustler big bore, xx-long, x-long???? There are so many on there i don't want to get the wrong one, and have to reorder. Does anyone else have the powerline aluminum? How is it holding up?Is there better? Thanks