Mastodon GM Transmission Mount

Universal GM transmission mount in polyurethane — direct replacement for the factory rubber mount on the popular GM transmission family. Polyurethane is the smart upgrade over rubber: holds the trans firmly in place under hard launches and gear changes, doesn't sag with age, and isn't attacked by oil and modern fuels.

Adds a small amount of NVH compared to rubber but is far less harsh than a solid mount — the right choice for street/strip builds.

Specifications:

• Application: GM TH350, TH400, 700R4, 4L60E, 4L80E, Powerglide, Muncie 4-speed
• Material: High-strength steel bracket with polyurethane bushing
• Finish: Black
• Includes: Mount + mounting hardware