LASALLE, Ill., Oct. 29, 2015 /PRNewswire/ -- JC Whitney today announced the three finalists vying to win one of two custom vehicles: a 2015 Jeep Wrangler Unlimited Rubicon or a Ford F150 XLT SuperCrew 4X4. As a part of the "JC Whitney Centennial Sweepstakes and Charity Event,"...