If there's any angle change at all, it will be minuscule. We used to do something similar on the dirt track cars, but in the other direction. Track rules required a certain minimum wheelbase, but shorter wheelbase cars go around turns better. A wheelbase check was included in the tech inspection at the beginning of the racing season. Toward the end of the season anybody who wanted to stay competitive was running a few inches shorter- - -helped out by several spring center bolt holes in the mounting pads, and a shorter driveshaft. Pinion angles didn't change enough to matter, and the change was not obvious on the open wheel cars we ran.
Jerry
