Question: What is a differential and why do Somerset drivers need to have it serviced? Restas Auto Care Answer: First of all - your vehicle does have a differential. If it's a rear wheel drive, your differential is on the back. If it's front wheel drive, your differential is built into your transaxle (transmission). Somerset...Read MoreThe post Simple Answers from Restas Auto Care for Somerset: Differential Service appeared first on Restas Auto Care.