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1973-1987 4WD GM Truck and 1973-1991 4WD SUV LS Engine Mounts and Frame Bracket Kit


1973-1987 4WD GM Truck and 1973-1991 4WD SUV LS Engine Mounts and Frame Bracket Kit
Purchase 1973-1987 4WD GM Truck and 1973-1991 4WD SUV LS Engine Mounts and Frame Bracket Kit
  • 1973-1987 4WD GM Truck and 1973-1991 4WD SUV LS Engine Mounts and Frame Bracket Kit

  • $299.00

    SKU: 420-1302-00

Factory aligned LS mounts for 1973-1987 GM 4WD trucks/1973-1991 SUVs

Delivering exact fit to 1973 through 1987 GM 4WD trucks and 1973 through 1991 SUVs, these engine mounts and frame brackets lock in factory alignment and shave hours off installation by needing only minimal adjustments for an LS engine swap. Precision laser cut and bent from heavy gauge steel with a corrosion resistant powder coat, each bracket ensures rugged strength and lasting reliability backed by US made craftsmanship.

LS Engine Mounts and Frame Brackets for 1973-1987 4WD GM Trucks and 1973-1991 4WD SUVs

If you are fitting an LS engine into a 1973-1987 GM 4WD truck or a 1973-1991 4WD SUV the first roadblock is finding mounts that match the OEM frame geometry. These engine mounts and frame brackets deliver pre-aligned, laser-cut mounting that bolts directly to factory holes with no drilling or shims required. Fabricated from heavy gauge steel with a durable powder coat finish they maintain correct engine angle, preserve drivetrain geometry, and resist corrosion under demanding on road and off road conditions. By mirroring original hole patterns installers can cut installation time and avoid ongoing fitment headaches for reliable performance.

Precision Engine Positioning with Laser Cut and Bent Brackets

The laser cutting process replicates the exact frame rail hole patterns on GM trucks and SUVs, ensuring the LS engine is secured at the factory recommended angle from the moment it is bolted into place. Precision bending follows the contour of the chassis, maintaining drivetrain alignment by matching the original geometry under dynamic load. By eliminating the need for trial fitting, extra drilling or shims, this method reduces stress on transmission mounts and drive line joints. Installers can rely on consistent placement without guesswork, promoting even torque distribution and minimizing wear on mating surfaces over time.

Heavy Gauge Steel Construction with Durable Powder Coat Finish

Each bracket assembly is formed from heavy gauge steel that delivers exceptional yield strength and fatigue resistance, key for the rigors of on road and off road use. A dense powder coat finish locks tightly onto every surface, including weld seams and edges, creating a barrier against moisture, road salt and debris. Routine washing is all that's required to maintain its protective layer, preventing rust before it can compromise structural integrity. This robust combination of material and coating preserves mounting accuracy and extends service life under harsh environmental conditions.

Factory Hole Alignment Streamlines LS Swap on GM 4WD Chassis

Designed exclusively for 1973-1987 4WD GM trucks and 1973-1991 4WD SUVs, these mounts and brackets bolt directly to existing frame holes with no need for adjustment or extra hardware. Pre aligned mounting points mirror the OEM layout to cut installation time and reduce the risk of misalignment that can lead to vibration and driveline binding. Hardware is included for a complete, one-workflow assembly, allowing technicians to move quickly from fitment to torque. The result is a repeatable swap process with minimal modifications and consistent performance across multiple vehicles.

Engineered for a precise fit and durable performance.

Fitment

  • 1973-1987 4WD GM Truck
  • 1973-1991 4WD SUV

Specifications

  • SKU: 420-1302-00
  • Swap Engine: LS
  • Brand: Muscle Rods
  • What's Included:
    • (2) Engine Mounts
    • (2) Frame Brackets
    • Hardware

Key Features

  • Custom-designed for seamless LS engine swaps
  • High-grade steel construction for lasting durability
  • Precision-bent, laser-cut, and powder-coated steel
  • Vehicle-specific fit for 1973-1987 4WD GM trucks and 1973-1991 4WD SUVs
  • Pre-aligned mounting points require minimal modifications
  • Manufactured in the USA by Muscle Rods

Benefits

  • Simplifies LS engine swaps for quick, hassle-free upgrades
  • Delivers lasting strength and reliability for rugged use
  • Provides precise fit and corrosion-resistant finish
  • Ensures perfect alignment with factory mounting points
  • Reduces modifications to save installation time
  • Backed by US-made quality and expert craftsmanship

This Item Assigned to Category and Also Fits:

Description

LS Engine Mounts and Frame Brackets for 1973-1987 4WD GM Trucks and 1973-1991 4WD SUVs

If you are fitting an LS engine into a 1973-1987 GM 4WD truck or a 1973-1991 4WD SUV the first roadblock is finding mounts that match the OEM frame geometry. These engine mounts and frame brackets deliver pre-aligned, laser-cut mounting that bolts directly to factory holes with no drilling or shims required. Fabricated from heavy gauge steel with a durable powder coat finish they maintain correct engine angle, preserve drivetrain geometry, and resist corrosion under demanding on road and off road conditions. By mirroring original hole patterns installers can cut installation time and avoid ongoing fitment headaches for reliable performance.

Precision Engine Positioning with Laser Cut and Bent Brackets

The laser cutting process replicates the exact frame rail hole patterns on GM trucks and SUVs, ensuring the LS engine is secured at the factory recommended angle from the moment it is bolted into place. Precision bending follows the contour of the chassis, maintaining drivetrain alignment by matching the original geometry under dynamic load. By eliminating the need for trial fitting, extra drilling or shims, this method reduces stress on transmission mounts and drive line joints. Installers can rely on consistent placement without guesswork, promoting even torque distribution and minimizing wear on mating surfaces over time.

Heavy Gauge Steel Construction with Durable Powder Coat Finish

Each bracket assembly is formed from heavy gauge steel that delivers exceptional yield strength and fatigue resistance, key for the rigors of on road and off road use. A dense powder coat finish locks tightly onto every surface, including weld seams and edges, creating a barrier against moisture, road salt and debris. Routine washing is all that's required to maintain its protective layer, preventing rust before it can compromise structural integrity. This robust combination of material and coating preserves mounting accuracy and extends service life under harsh environmental conditions.

Factory Hole Alignment Streamlines LS Swap on GM 4WD Chassis

Designed exclusively for 1973-1987 4WD GM trucks and 1973-1991 4WD SUVs, these mounts and brackets bolt directly to existing frame holes with no need for adjustment or extra hardware. Pre aligned mounting points mirror the OEM layout to cut installation time and reduce the risk of misalignment that can lead to vibration and driveline binding. Hardware is included for a complete, one-workflow assembly, allowing technicians to move quickly from fitment to torque. The result is a repeatable swap process with minimal modifications and consistent performance across multiple vehicles.

Engineered for a precise fit and durable performance.

Fitment

Fitment

  • 1973-1987 4WD GM Truck
  • 1973-1991 4WD SUV
Features
  • Custom-designed for seamless LS engine swaps
  • High-grade steel construction for lasting durability
  • Precision-bent, laser-cut, and powder-coated steel
  • Vehicle-specific fit for 1973-1987 4WD GM trucks and 1973-1991 4WD SUVs
  • Pre-aligned mounting points require minimal modifications
  • Manufactured in the USA by Muscle Rods
Benefits
  • Simplifies LS engine swaps for quick, hassle-free upgrades
  • Delivers lasting strength and reliability for rugged use
  • Provides precise fit and corrosion-resistant finish
  • Ensures perfect alignment with factory mounting points
  • Reduces modifications to save installation time
  • Backed by US-made quality and expert craftsmanship
What's Included
  • (2) Engine Mounts
  • (2) Frame Brackets
  • Hardware
Specifications
  • SKU: 420-1302-00
  • Brand: Muscle Rods
  • Swap Engine: LS