High Performance Gearing Phoenix Arizona by Automotive Diagnostic Specialties

Changing your cars gearing or gear ratios is one of the most effective performance improvements you can make for the money. For example, swapping from a 3.15 to 3.46 ratio will give your car 10% more torque delivered to the rear wheels! All of our differentials are limited slip units, meaning that both wheels pull – no more wheel spin. We will take your old differential (or one of ours) and completely rebuild it to new specifications with the gear set of your choice. Talk to the experts at ADS Auto Repair about gears to suit your specific application. This means you can customize the ratio to support heavy towing or power in the lower RPM band. They can be customized around your needs.


Read More Testimonialsautomotive diagnostic specialties testimonials ADS is the best shop in Arizona. They perform all my vehicle maintenance from basic oil changes on my Tahoe, to full-on performance mods for my Z06. I have been going to ADS since 2007, and I have had ZERO complaints – these guys are excellent.
Jeff T.