I have a nitro evader st, havent ran it in a wihle. would like to run todya, spent 2 days putting it back together and getting it set up.

I think my slipper pad is worn, i have many pads but i dont know which ones are good or not, i have 2 white ones from i think the Rc10gt, and a couple blue DTX ones..

my question is is there a way to make any of them work? no matter which ones i put in there it doesnt move the wheels, it just spins the spur even when i use my hand, but when i spin the thing behind the spur it moves the wheels, its all the way tight

any way to make them work?