The steering in my ’05 Cadillac XLR has been stiff since replacing the rack & pinion, power steering pump, and fluid reservoir two years ago. GM discontinued the rack, so the shop installed a new rack from O’Reilly. I complained that it was too stiff, so the shop got another one from O’Reilly, which is just as stiff. I’ve put less than 2, 000 miles on the car since then. Will your Trans Tune product help loosen the steering? Thank you.