Transmission System Description and Operation. GMC Truck Export GMC P42 Commercial Chassis 1999

For 1990-2009 cars

Identify transmissions by the number of forward gears and the measured distance (in millimeters) between centerlines of the mainshaft and the countershaft.

The New Venture Gear NV3500 (85 mm) five--speed overdrive manual transmission is identified by the RPO M50 for four wheel drive vehicles and RPO MG5 for rear wheel drive (RWD) vehicles.

The transmission has the following features:

• | Constant mesh helical gearing for reduced noise

• | A two-piece aluminum housing.

• | Synchronized shifting in all forward gears

• | A shift tower mounted shift lever.

Identify the transmissions by the number of forward gears and the measured distance (in millimeters) between centerlines of the mainshaft and the countershaft.

The New Venture Gear NV4500 (109 mm) five--speed manual transmission is available as RPO MW3.

The transmission has the following features:

• | Synchronized shifting in all forward gears

• | Constant mesh helical gearing for reduced noise

• | Overspeed inhibitor from low to first speed gears

• | Dual cone low speed gear and 1ST speed gear synchronizer

• | A shift tower mounted shift lever