where is the best place to order the 11432 shafts? i am a high school student, and am unemployed so cheaper is better. i knew the front and rear shafts were the same. i actually traded it with a front one after it getting chewed up from binding. btw i got like 5 feet of air. that jump is bigger than it looks in the picture. it is a steep snow birm against a retaining wall. i had to jump it for 2 tanks before i broke any thing. the lil buggy can take some abuse