Changing the differential oil on trucks and SUVs with rear-wheel drive is an essential service that needs to be performed every 30,000 to 50,000 miles. This is a complex job best done by a certified auto technician. At First Klass Transmission and Auto Care we are experts in differential service. We can handle the flush and fill of your differential as part of your truck or SUV’s routine maintenance. We can then get you back on the road in no time.