79-85 are all the same with the exception of the housings. 84-85 have a truss under the axle that goes all the way under the spring pad. 79-83 stopped 1" short of that. On any Toy swap you need to raise the dr. side pad 3/8" to equal the height on the pass side. you also have to redrill the perches 3/8" inward to accomidate the spring width difference. The rear you just need to move spring pads in 1" on each side. rear brake lined are compatible, fronts you can use rear Toys for the extension and Drive shafts can be hooked up easily enough with a set of my adapters.
