a Trinity aluminium motor clamp was a must back in the day to stop the motor slipping out of position/mesh under heavy load or jump landings...
they are fairly hard to find these days... Trinity servo mount stops servo twist too.... both these can fetch a premium because of that but maybe oOple can help with the wanted section... otherwise it's constant ebay searching!
we used to dremel cut the rear belt/chassis top cover at an angle so the side belt could be changed quicker/spur gear etc accessed without removing rear shock tower etc... bit harder to justify that one when chassis parts are hard to get and scarcer these days.
XX4 is an awesome car and really looking forward to getting my brand spanking new one running... it's being built from NIP parts
