fantastic product, why? this is a direct fit for your rustler, bandit or stampede 2wd, no trimming required. the rubber cap is larger giving more room for slipper adjustment. also it completely seals the gearbox as there is no gap over the outdrive as with the standard item. no more dirt and stones wrecking your gears. i run a vxl version and there are no clearance issues at all. very good quality at a great price. highly recommend this as an upgrade before anything else.