As with any kit, take your time! Test fit things, then test fit them again. Let glued pieces dry completely before moving on. On parts that will be under stress or some weight I like to use 2 part epoxy. Can’t remember everything I adjusted of course, but I do remember trimming a bit away from front of cab at bottom, just above bumper so it will tilt properly. Also the top edges of interior door panels, so it would slip in the cab easily. Top of air intake on radiator was trimmed a bit to make room when cab closes. Hope it helps!