Why replace a full grown truck front suspension system with one for a subcompact car? It's a lot simpler, and probably less expensive to rebuild the straight axle suspension to like new condition. Disc brake kits are available if you want to "upgrade" the brakes to leave longer skid marks in a panic stop situation.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!