On our open-wheel dirt trackers, we used to drill several spring center bolt holes in the axle perches, and shorten up the wheelbase an inch at a time during the racing season. No fenders made it easy, because the wheel openings wouldn't give us away. We'd start at the minimum legal length for early-season tech inspection, and get 3" shorter by the end of the season. We had to install a shorter driveshaft every time, but short wheelbase cars got around the turns better! (It ain't cheating unless ya get caught!)
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!