RV & Truck Transmissions

 
Transmission Services and Repair
Jim Jennings Transmissions is proud to provide the Baltimore area with a wide range of transmission services and repairs. As an established transmission service center in Baltimore, Jim Jennings Transmissions is fully equipped to solve any problems with your entire drivetrain.

We perform external automatic transmission diagnostics without needing to remove and inspect the inside of your components because many issues are not internal but rather electrical or related to external parts.


 

RV & Truck Transmissions - Manual and Automatic

Manual Transmissions

We service, repair and replace manual and automatic transmissions, clutches, torque converters and differentials for Light, Medium and Heavy duty trucks and RV's. We have the lifts, equipment, inventory and expertise with master technicians.

If you are experiencing hard shifting problems during cold weather, a fluid change may improve your vehicle's performance. Most older rear-wheel drive transmissions use a heavy gear oil like 75W, 80W or 90W, which can get pretty stiff at subzero temperatures. Changing to a lighter oil may improve shifting.

Automatic Transmissions

According to the Automatic Transmission Rebuilders Association, 90% of ALL transmission failures are caused by overheating. Most of these can be blamed on worn out fluid that should have been replaced. For optimum protection, change the fluid and filter every 30,000 miles. What kind of automatic transmission fluid should you use in your transmission? The type specified in your owner's manual or printed on the transmission dipstick. For older Ford automatics and certain imports, Type "F" is usually required. Most Fords since the 1980s require "Mercon" fluid, which is Ford's equivalent of Dexron II. For General Motors, Chrysler and other imports, Dexron II is usually specified.