New from Auto Metal Direct: Factory-Correct Temperature Control Assemblies for 1974-1991 Chevy & GMC Squarebody Trucks and SUVs

Restore Comfort and Confidence with New AMD Temperature Control Assemblies for Squarebody Trucks

If you've spent any time restoring a 1974-1991 Chevy or GMC Squarebody truck, you already know that finding quality interior components can be just as difficult as sourcing body panels. One of the most commonly overlooked—and frequently worn—components is the heater and air conditioning temperature control assembly.

After decades of use, the original control assemblies often become difficult to operate. Sliders stick, internal mechanisms wear out, lettering fades, and switches simply don't function like they once did. While used originals are becoming increasingly scarce, many available replacements fail to match the original appearance or provide the smooth operation enthusiasts expect.

That's why Auto Metal Direct (AMD) is proud to introduce an entirely new line of Temperature Control Assemblies, manufactured using all-new AMD tooling specifically for 1974-1991 Chevrolet and GMC C/K Series trucks, including C10, C20, C30, K10, K20, K30, as well as Blazer, Jimmy, and Suburban models.

Designed to closely replicate the original factory controls, these assemblies help restore both the appearance and functionality of your truck's HVAC system.

Manufactured on All-New AMD Tooling

Unlike refurbished originals or generic replacements, every new AMD Temperature Control Assembly is produced using new AMD-designed tooling.

That means these units are engineered to deliver:

• Factory-style appearance
• Correct control layout
• Smooth slider movement
• Accurate fit within the factory dash opening
• Reliable operation for years of driving

Whether you're restoring a survivor, completing a concours-quality build, or simply replacing a worn-out original in your weekend cruiser, these assemblies provide the confidence that comes from using newly manufactured components designed specifically for your Squarebody.

Applications for Nearly Every Squarebody Truck

AMD developed multiple versions to cover the numerous HVAC configurations used throughout the Squarebody production years.

Available applications include:

1974-1980 Without Air Conditioning (3-Speed Fan)

Part #: 460-4074-553

Designed for factory heater-only trucks equipped with a 3-speed blower motor.

1974-1982 Without Air Conditioning (4-Speed Fan)

Part #: 460-4074-554

Correct for later heater-only applications utilizing the 4-speed fan configuration.

1974-1975 With Air Conditioning

Part #: 460-4074-55AC

Factory-style replacement for early Squarebody air-conditioned trucks.

1976-1977 With Air Conditioning

Part #: 460-4076-55AC

Matches the updated control configuration used during the 1976-1977 model years.

1977-1982 With Air Conditioning

Part #: 460-4077-55AC

Designed for later first-generation Squarebody HVAC systems equipped with factory air conditioning.

1983-1991 Without Air Conditioning

Part #: 460-4083-55

Correct heater-only control assembly for later Squarebody trucks and SUVs.

1983-1991 With Air Conditioning

Part #: 460-4083-55AC

Factory-style replacement for 1983-1991 air-conditioned Chevrolet and GMC Squarebody models.

Designed for the Most Popular Squarebody Models

These new AMD assemblies fit many of the most popular classic GM trucks and SUVs, including:

• Chevrolet C10
• Chevrolet C20
• Chevrolet C30
• Chevrolet K10
• Chevrolet K20
• Chevrolet K30
• GMC C15, C25, C35
• GMC K15, K25, K35
• Chevrolet Blazer
• GMC Jimmy
• Chevrolet Suburban
• GMC Suburban

Whether you're restoring a work truck, lifted K-Series, daily driver, or award-winning show truck, AMD now offers the correct temperature control assembly for your application.

Why Replace Your Original Temperature Controls?

One of the biggest frustrations during a restoration is spending countless hours rebuilding the dash only to reinstall worn-out HVAC controls.

A new temperature control assembly provides benefits that go beyond appearance.

Owners can eliminate:

• Sticky or difficult-to-move sliders
• Worn internal mechanisms
• Broken or faded control faces
• Loose or inconsistent control movement
• Aging components that detract from an otherwise fresh interior

Installing a brand-new assembly helps restore the factory driving experience every time you adjust the heat, defrost, or ventilation.

The AMD Difference

Auto Metal Direct has built its reputation by manufacturing premium restoration components using dedicated tooling that prioritizes factory-correct fit and appearance.

The addition of these Temperature Control Assemblies continues AMD's commitment to expanding its growing line of Squarebody restoration parts, offering enthusiasts even more solutions for completing authentic restorations.

From complete body panels and trim pieces to interior components and dash assemblies, AMD continues investing in new tooling so restorers don't have to rely on increasingly expensive and worn-out original parts.

Full How We Do It Video Series Coming Soon: https://www.youtube.com/@autometaldirect 

Complete Your Squarebody Restoration

These new Temperature Control Assemblies are the perfect finishing touch for any interior restoration.

If you're already replacing dash components, instrument bezels, vents, trim, or restoring your heater box, now is the ideal time to install a brand-new control assembly and ensure every control inside your truck looks and operates like it should.

With multiple configurations available for both air-conditioned and non-air-conditioned trucks, AMD makes it easier than ever to restore your Squarebody the right way.

Frequently Asked Questions

What vehicles do these Temperature Control Assemblies fit?

They fit 1974-1991 Chevrolet and GMC C/K trucks, including C10, C20, C30, K10, K20, K30, along with Blazer, Jimmy, and Suburban models. Be sure to select the correct version based on your model year and whether your vehicle is equipped with factory air conditioning.

Are these newly manufactured?

Yes. Every Temperature Control Assembly is manufactured using all-new AMD tooling and is not a refurbished or used original component.

Are different versions available?

Yes. AMD offers multiple assemblies covering:

• 3-speed heater systems
• 4-speed heater systems
• Factory air conditioning applications
• Heater-only applications
• Early and late Squarebody production years

Why should I replace my original assembly?

Original controls are often worn after decades of use. Replacing them restores smooth operation, improves interior appearance, and helps return your HVAC controls to factory-style functionality.

Restore Your Squarebody with Confidence

Whether you're building a numbers-matching restoration, refreshing a dependable driver, or finishing a complete frame-off build, the new AMD Temperature Control Assemblies provide the factory-style appearance and dependable operation enthusiasts have been waiting for.

Explore the complete lineup today and find the correct Temperature Control Assembly for your 1974-1991 Chevy or GMC Squarebody truck or SUV, only from Auto Metal Direct.