Quick answer

The RER13520 is a differential gear set for Caprice Classic, MONTE CARLO, SixtyFive, SixtyFour, and SixtyThree vehicles. The RER14761 is an upper servo mount front for the MONTE CARLO only. Choose RER13520 if you need drivetrain parts for multiple models; choose RER14761 if you need a specific servo mount for a MONTE CARLO.

What each part does

The RER13520 differential gear set is a drivetrain component that transfers power from the motor to the wheels. It comes as a one-set package and is listed for use with several Redcat vehicles: Caprice Classic, MONTE CARLO, SixtyFive, SixtyFour, and SixtyThree. If you are rebuilding or upgrading the differential on one of these models, this set gives you the gears you need in a single package.

The RER14761 upper servo mount front is a chassis component that holds the steering servo in place. It is a single-piece spare part designed specifically for the MONTE CARLO. If your servo mount is cracked, stripped, or missing, this part restores proper servo alignment and steering response.

Key differences at a glance

Part type: RER13520 is a differential gear set (drivetrain), while RER14761 is an upper servo mount front (chassis). They serve completely different functions and are not interchangeable.

Vehicle compatibility: RER13520 fits five vehicle models (Caprice Classic, MONTE CARLO, SixtyFive, SixtyFour, SixtyThree). RER14761 is only listed for the MONTE CARLO. If you own a SixtyFive or SixtyFour, the RER14761 will not fit.

Quantity: RER13520 is sold as a one-set package containing multiple gears. RER14761 is a single piece. Neither includes hardware like screws or shims.

Price and value

The RER13520 differential gear set has a catalog price of USD 13.86 (compared to USD 18.99). The RER14761 upper servo mount front costs USD 4.79 (compared to USD 7.99). Both are budget-friendly replacement parts that restore function without requiring a full vehicle upgrade.

If you are on a tight budget and only need a servo mount for a MONTE CARLO, the RER14761 is the cheaper option. If you need drivetrain parts and own one of the five compatible models, the RER13520 set offers good value for a complete gear replacement.

Trade-offs to consider

  • Part function: RER13520 is a drivetrain part (differential gears); RER14761 is a chassis part (servo mount). They address different failure modes and cannot substitute each other. Identify which system is damaged before choosing.
  • Vehicle compatibility: RER13520 fits five models; RER14761 fits only the MONTE CARLO. If you own a SixtyFive or SixtyFour, the RER14761 will not work. Check your vehicle model against the listed applications.
  • Price difference: RER13520 costs USD 13.86 (catalog price) while RER14761 costs USD 4.79. The gear set is more expensive but covers a more complex drivetrain repair. Budget for the part that matches the repair scope.
  • Quantity and contents: RER13520 is a set of gears; RER14761 is a single piece. Neither includes mounting hardware or instructions. You may need to purchase additional hardware separately.

Product facts

  • RER13520: The Redcat Racing RER13520 Differential Gear Set is a replacement part supplied as a one-set package. It is listed for use with Caprice Classic, MONTE CARLO, SixtyFive, SixtyFour, and SixtyThree vehicles. If you own one of these five models, this gear set covers your differential needs. If your vehicle is not listed, you need to check compatibility before ordering.
  • RER14761: Redcat Racing RER14761 is an upper servo mount front spare part, supplied as a single piece (1pc). It is listed for use with the MONTE CARLO current vehicle and is categorized under spare parts. This part is model-specific. Only order it if you have a MONTE CARLO and need to replace the servo mount. It will not fit other Redcat vehicles.

Which part should you choose?

Best for

  • Owners of Caprice Classic, MONTE CARLO, SixtyFive, SixtyFour, or SixtyThree who need differential gears (choose RER13520).
  • MONTE CARLO owners needing a servo mount replacement on a tight budget (choose RER14761).

Not for

  • Vehicles not listed in the compatibility table for each part.
  • Users expecting a complete rebuild kit with hardware or instructions.