USA Standard Gear ZMM5R1-8 Manual Transmission Cluster Gear MR5

The USA Standard Gear ZMM5R1-8 is a manual transmission cluster gear (countershaft) designed for the Mazda MR5 (M5R1/M5OD-R1) 5-speed manual transmission used in Ford Ranger and Mazda B-Series trucks with 4.0L engines. The M5OD-R1 is a fully synchronized five-speed manual transmission produced by Mazda that was first introduced for the 1988 model year in the Ford Ranger, Bronco II, and Aerostar.

Key Features:

• Precision-engineered cluster gear for MR5/M5R1 transmissions
• Designed specifically for 4.0L V6 engine applications
• USA Standard Gear manufactures a full line of top-quality transmission parts for transmission, differential, and general replacement part needs
• Direct replacement component for transmission rebuilds and repairs
• OE-quality construction for reliable performance

This cluster gear is a critical internal transmission component that works with the input shaft to provide the proper gear ratios for smooth shifting and power transfer. The M5R1 transmissions were used by both Ford and Mazda in Bronco II, Rangers, Explorer Sports and B Series Mazda pickup trucks starting in 1988 with 2.3, 2.9, 3.0 and 4.0L 4 cylinder and V6 models. The cluster gear is essential for proper transmission operation and must be replaced when worn or damaged during transmission rebuilds.