i built this in the mid 80's, it went through many stages, there is another half van added in length, four xj6 axles the rear axle has its crownwheel removed for less drag, third axle drives, and both front steer , with two power steering racks and pumps, racks were linked with an enclosed motorcycle chain. never wore OUT tyre's. power was from a 5.2 dodge v8 auto... inside was fully kitted out with hot+cold water on tap , shower ,toilet, fridge, cooker, grill, tv, and double bed/ dining area. had more pictures but the buyer borrowed them and never brought them back, i will load more if i find any...