the truck is only like 2 weeks old, and when i accelerate hard at times if i have wheel hop there is a loud banging sound from the back. what the heck could it be? i already put the shackles on, could that be part of it? and on that point, what would be a good brand of shock to run on the new trucks to get better handling performance?

 

Maybe your spare tire is loose. That could be the banging sound you hear.

 

it could be, i'm gonna go out and check that real quick...maybe i'll just take it off and do away with it and the crank holding it there.

 

Could it be your U-joints? I know it's only 2 weeks old, but you never know. Mine get pretty loud under acceleration, too.