You can run Sport Trac 16" wheels on a 91-94, here's proof.
First image set: On my 2dr with 235/70R16 tires. Required 1.5" spacers. No clearance issues, improved road feel and stability slightly from my stock width 235/75R15 setup.
First image set: On my 2dr with 235/70R16 tires. Required 1.5" spacers. No clearance issues, improved road feel and stability slightly from my stock width 235/75R15 setup.