I've done the swap. I had an 84 Crew Cab single wheel one ton. You will have to use the core support from the 91.5 you got from the donor. I bought a brand new grill for the 92-93. I still have an NOS one in the box for a spare. I used the gauges and all the wiring from my donor 91.5. You have to move the wiring bulkhead over about 1" to put in the clutch master if I remember correctly. Other than that it is simple. Here is my one truck. It served me well for ten years. Sold it in 2012 when I bought a new one. The only bad part is the air conditioning is just not up to par for a big cab. Good luck. I sold mine for $6500.