hello again. i dont know what it is with me and cen drive belts, but since my modification to the side belt (still works a treat), my rear belt has started to strip aswell. so this time i didnt mess around, i just made a custom tensioner for it straight away, and used another hpi belt instead. i used the same tensioner as the front belts, bent the wire into the required shape, and drilled and countersunk the chassis, and mounted the tensioner. havent run the car yet as im waiting on some other bits, but i can see that it will have the same success of the side belt mod. if anyone is interested in more information or pictures, please let me know