1. Introduction
The Richmond 1520023 Cluster Gear is a precision-engineered component designed for specific manual transmission applications. It plays a critical role in the transmission's gear train, facilitating the transfer of power and enabling various gear ratios. This manual provides essential information regarding its proper handling, installation considerations, and maintenance to ensure optimal performance and longevity.
2. Product Overview
The Richmond 1520023 is a cluster speed gear, specifically designed for the low (LO) D position within certain LD Manual Transmissions, including the Richmond Super T10 Plus 2-Speed system. It is a key component in the countershaft/gear assembly, contributing to the 1st gear ratio.

This image displays the Richmond 1520023 Cluster Gear. It is a circular metal component featuring a series of external teeth around its circumference and internal splines within its central bore, designed for precise engagement within a manual transmission system.
3. Installation
Installation of the Richmond 1520023 Cluster Gear requires specialized knowledge and tools. It is strongly recommended that installation be performed by a qualified automotive technician. Improper installation can lead to transmission damage, premature wear, and unsafe vehicle operation.
- Refer to the specific service manual for your transmission model for detailed disassembly and assembly procedures.
- Ensure all mating surfaces are clean and free of debris.
- Use appropriate lubricants and sealants as specified by the transmission manufacturer.
- Verify correct gear mesh and clearances after installation.
4. Operation
Once correctly installed within the transmission assembly, the Richmond 1520023 Cluster Gear functions as an integral part of the gear train. Its teeth engage with other gears to transmit rotational force, contributing to the selection of specific gear ratios. The gear's design ensures smooth power transfer under normal operating conditions when properly lubricated and maintained.
5. Maintenance
Regular maintenance of your transmission system is crucial for the longevity of the Richmond 1520023 Cluster Gear and other internal components. This includes:
- Transmission Fluid: Periodically check and replace transmission fluid according to your vehicle manufacturer's recommendations. Use only the specified type and grade of fluid.
- Inspection: During any transmission service, inspect the gear for signs of wear, pitting, chipping, or unusual discoloration. Address any issues promptly.
- Cleanliness: Ensure the transmission housing remains sealed and free from contaminants that could introduce foreign particles into the gear oil.
6. Troubleshooting
Issues related to transmission gears often manifest as unusual noises or shifting difficulties. If you experience any of the following, consult a qualified technician:
- Whining or Grinding Noises: May indicate worn gears, bearings, or insufficient lubrication.
- Difficulty Shifting: Could be related to gear engagement issues, synchronizers, or clutch problems.
- Vibrations: May suggest imbalance or damage within the drivetrain, including transmission components.
Prompt diagnosis and repair are essential to prevent further damage.
7. Specifications
| Manufacturer | Richmond Gear |
| Brand | Richmond Gear |
| Item Weight | 2 pounds |
| Product Dimensions | 8 x 4 x 4 inches |
| Item Model Number | 1520023 |
| Manufacturer Part Number | 1520023 |
| ASIN | B00D15RH16 |
| Date First Available | October 1, 2010 |
8. Support
For technical assistance or further inquiries regarding the Richmond 1520023 Cluster Gear, please contact Richmond Gear customer support or consult an authorized dealer.





