69 - 71 Dodge pu Cummins swap
I think it fit here is the down falls though since i know 61 to 71 dodges well the light body noise will be a huge issue and the light weight
steering gearbox im shure it break if you were to run it , If it was me id measure the cab mounts and put it on the 92 frame and be fore i did that
spray bed liner in the cab and on the bottom of the cab and make aheck ofalot stronger and quieter
note though the 65 hoods ,do sit up a touch higher ,and i got one with a small dent id sell and ship it if ya want