Wasted trucks are pretty cheap, and a 4wd chassis will bolt up to almost anything; I've seen it, lol.
A pickup frame and suspension is pretty well self contained, if
you find the right one.
Chevy parts are cheaper, and most of the monsters I've seen have been someones car welded on a chevy SB chassis.
I saw a 80 Toyota Corolla that would throw 50' roosters, lol. There were several bodies on that frame, IIRC.
You would only need to route the electricals and controls into the cabin; that can be pretty simple, depending. (A 350 and a 3 speed don't need a lot, lol.)
A modern 4WD ford is cable and electrical only, no hard linkages at all.
It just depends on what you
want to do.
I do like the Panther setup!
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
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