CFMi - Heavy Duty Replacement Motor Mounts for 1973–1991 Squarebody Chevy and GMC 4x4 Trucks

CFM Industries Heavy Duty Replacement Motor Mounts

Replace weak factory clamshell mounts with these heavy-duty replacement motor mounts designed for 1973–1987 Chevy and GMC 4WD Squarebody trucks, including 1991 Blazers and Suburbans. Built for improved strength and durability, these mounts are designed to handle off-road use, drivetrain upgrades, and higher drivetrain loads better than aging factory components.

Constructed from CNC-cut, formed, and welded 1/4-inch steel plate, these mounts use large polyurethane bushings and a 9/16-inch mounting bolt for increased stability and long-term reliability.

Features and Benefits

• Heavy-duty replacement for factory clamshell motor mounts
• CNC cut, formed, and welded steel construction
• Made from 1/4-inch steel plate
• Large polyurethane bushings for improved durability
• 9/16-inch mounting bolt design
• Improved engine stability over worn factory mounts
• Designed for off-road and heavy-use applications

Fitment

Fits 1973–1987 Chevy and GMC 4WD Squarebody trucks, including:

• K10, K20, K30 pickups
• 1991 Blazer
• 1991 Suburban

Installation

• Direct replacement for factory clamshell-style motor mounts
• Uses large polyurethane bushings and included 9/16-inch bolt hardware
• Professional installation recommended for drivetrain service work

Finish

• Ships in bare steel
• Requires paint or powder coating before installation

Production

• Made to order
• Typical fabrication lead time: 2–5 days before shipping

Why This Upgrade Works

Factory motor mounts wear out over time and can allow excessive engine movement under load. These heavy-duty replacements improve drivetrain stability and provide a much stronger foundation for off-road, towing, and performance-oriented Squarebody builds.