* Denville Transmission Inc. 370 E. Main St. (Rt. 53) Directions Enter your starting address: Expert Transmission Repairs For more than 30 years, vehicle owners throughout the area have turned to Denville Transmission for expert transmission repairs. Whether you drive a car, truck, van, or SUV with an automatic or manual transmission, we have the experience to get the job done. Transaxle repairs are also available. Repairs for Differentials & Clutches Prevent costly problems down the road when you turn to Denville Transmission for prompt and professional differential and clutch repairs. Backed by more than 30 years of experience and equipped with the right tools, you can trust us to fix the problem quickly.