Here is an old favorite. Many miles and it shows.
Wheel hubs cracked, repaired and cracked again. Besides, axle had a slight wobble.
SlotCarCorner 15x10 insert wheels and turned the originals down for inserts. 36t Slot.it spur but used original pinion. Meshes well. Sloting Plus guide/SCC braid up front.
Gave it a bath and a polish.
Runs very well. Good to have this beast back in action.