Pro's:
-Subjective of course but you'll have the best of both worlds. You'll have the best truck with the best diesel engine.
-Good fuel economy assuming it's set up correctly
-Lots of power stock and easily modifiable to make crazy amounts of power
-Engine fits in Fords well as if it was meant to be there
-Super relable and long life span
-Easy to work on
Con's:
-Will eat automatic transmissions. Go with a manual if you want reliability.
-Heavy (around 1100 lbs)
-Noisy (94 and up engines with P pumps are a lot more noisy than the 88-93 P-pump models)
-Hard on the front wheel bearings due to weight
1990 ¾ ton 4x4 Chevy Suburban
-Cummins Diesel - 12 valve - factory rebuilt
-6 speed bullet proof manual transmission - NV5600
-Gear Vendors Overdrive
-Upgraded Holset HX-35 turbo
-NP205 iron transfer case
-3.73 gears
1982 ½ ton Chevy Suburban
-6.2L diesel - high nickle crack free 1982 block
-Stans headers
-Ported heads
-Timing gear
-4 speed automatic
-3.08 gears
-30 mpg on freeway