Muncie SM465 transmission

Muncie SM465

Manufacturer	General Motors
Production	1968–1991
Predecessor	SM420
Class	4-speed manual

The SM465 is heavy-duty truck transmission is used in light duty and heavy duty trucks. The SM465 was made by General Motors from 1968 to 1991. The SM465 can be found in Chevrolet and GMC full-size trucks, Blazers, Suburbans among other models

The "SM" in the transmission's designation stands for Synchro-Mesh.

Gear Ratios are:

• First Gear - 6.55:1
• Second Gear - 3.58:1
• Third Gear - 1.70:1
• Fourth Gear - 1.00:1
• Reverse - 6.09:1

References