- Total：{{ cartCount }}
-
M20/M21 2nd Gear, 36/30T
Description
The WT297-21 is a high-quality 2nd gear designed for the main shaft of Muncie M20 and M21 4-speed manual transmissions. It is made from SAE 8620 carburized alloy steel with a heat-treated surface hardness of HRC 58–62, ensuring excellent strength and wear resistance. Compatible with GM rear-wheel-drive vehicles from 1963 to 1974, including Camaro, Chevelle, Nova, and Firebird. A reliable choice for factory replacements, classic restorations, or performance builds.
Specification
Gear Type: Helical Gear
Tooth Count: 36/30T
Surface Hardness: HRC 58–62
Material: SAE 8620 or SCM415
Heat Treatment: Carburized & Quenched
Weight: Approx. 1.27 kg
-
Model：WT297-21
.webp "T10-16(S-567)")
.webp "M5R1-2")
