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Fenders wont fit.
Door panels wont fit.
Steering box will fit, but it probably has alot of miles on it and is worn out.
Fuel tanks will fit, but they wont have the fuel pumps in the tank that you need. Diesels have engine mounted fuel pumps.
Dash wont fit without alot of mods.
Calipers wont fit. F250 suspension and brakes is different that F150 suspension and brakes.
Back window.... maybe.
Driveshaft wont fit. U-joints are vastly different.
Sorry. I thought I saw F150. Brakes are different between 1990 and 1993.
If the wheel bases between both vehicles are the same (IE regular cab, long bed), the drive shaft should be swappable.
The 1993 is a more desirable model Vs the 1990.
Even if you wanted a project, and swap over the diesel engine into the 1993, itll still be a hassle because the wiring harness in the 1993 isnt set up for a diesel engine, and the 1990 wiring harness wont adapt well with the 1993 chassis. Things like "headlight dimmer switch" and windshield wiper controls are in different places.
This truck does you next to no good, if you're looking for body parts. And next to no good if you're looking for chassis parts. As @Prototypemech says, you want a 1992-1996, almost nothing from an 87-91 will be particularly useful to you.