This will get me mobbed on a Chevy site, but nothing beats a Ford 9" axle. NASCAR uses them at 200 MPH and 600 HP. Try one out of an E150 van to get close to the right track width.
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!