Ridetech 65-79 Ford F100 2WD HQ Series Coilovers Front Pair

24-Position Adjustable Front Coilovers Built for the 1965-1979 Ford F-100 Ridetech IFS

The Ridetech RID12313510 HQ Series Front Coilover kit delivers adjustable ride height, 24-position rebound tuning, and Hyperco coil springs calibrated specifically for the 1965-1979 Ford F-100 2WD equipped with the Ridetech Independent Front Suspension system.

The RID12313510 is engineered as part of the Ridetech IFS ecosystem and requires the Ridetech IFS front suspension to be installed, it is not a universal fitment for factory F-100 twin I-beam or conventional front ends. 

Each RID12313510 kit includes two Ridetech HQ coilover shock absorbers with large 1.834-inch pistons and heavy-duty 5/8-inch shafts built from impact-forged aluminum bodies, along with two Hyperco coil springs at the correct rate and two sets of mounting hardware. Ridetech validates all spring rates and shock calibrations through thousands of miles on their own test track and competition events, so the RID12313510 is ready to perform out of the box on the Ridetech IFS F-100 platform.

Key Features

• 24-position external rebound adjustment for fine-tuned handling response to match driving style and road conditions
• Large 1.834-inch piston diameter for consistent damping under hard cornering and rough road inputs
• Heavy-duty 5/8-inch shaft with impact-forged aluminum body for long-term durability in performance street and show truck use
• Hyperco coil springs included at Ridetech-validated spring rate for the 1965-1979 F-100 IFS platform
• Adjustable ride height via threaded perch on the coilover body
• Requires Ridetech IFS front suspension, not compatible with factory F-100 front suspension
• RID12313510 is backed by Ridetech's exclusive 1,000,001-mile warranty
• Designed, tested, and manufactured in Ridetech's ISO 9001 certified USA facility

Fitment

Specifications

What Is Included

• 2x Ridetech HQ Series front coilover shock absorbers
• 2x Hyperco coil springs (correct rate for F-100 IFS)
• Mounting hardware set
• Ridetech installation documentation

Frequently Asked Questions

Will the Ridetech RID12313510 coilovers fit the factory F-100 front suspension without the Ridetech IFS?

No. The RID12313510 is designed specifically for use with the Ridetech IFS front suspension system for the 1965-1979 Ford F-100. It is not compatible with the factory twin I-beam or conventional front suspension. The Ridetech IFS must be installed first.

What does 24-position rebound adjustment mean?

The external adjuster knob on the RID12313510 shock body allows you to select from 24 discrete rebound damping levels without removing the shock. Turning toward softer positions allows the suspension to extend more quickly for better compliance on rough roads. Turning toward firmer positions increases handling response and reduces body motion.

What spring rate do the Hyperco springs in the RID12313510 kit use?

Ridetech selects the spring rate for the RID12313510 based on validated testing on the F-100 IFS platform. The specific rate is published in the Ridetech product documentation included with the kit.

Can I adjust the ride height with these coilovers?

Yes. The RID12313510 coilovers feature a threaded lower perch that allows ride height adjustment. Ridetech recommends starting at their recommended ride height setting and making equal adjustments on both sides to maintain proper alignment geometry.

Does the RID12313510 require an alignment after installation?

Yes. Any suspension change that alters ride height or component geometry requires a professional alignment check. Alignment to the correct specifications is essential for proper tire wear and handling.

What is the warranty on Ridetech coilovers?

Ridetech backs the RID12313510 with their exclusive 1,000,001-mile warranty, covering defects in materials and workmanship for the life of the build.

Are these coilovers made in the USA?

Yes. Ridetech designs, develops, and manufactures their products in their ISO 9001 certified facility in the USA.

Do these coilovers work on the Ford F-150 versions of this era as well?

The Ridetech IFS and coilover system was developed for the 1965-1979 F-100 platform. The F-100 and F-150 share the same frame and front end in this generation. Confirm compatibility with Ridetech directly for F-150 applications in this year range.

Installation Instructions

1. Confirm the Ridetech IFS front suspension is fully installed and the vehicle is at ride height before beginning coilover installation.
2. Safely lift and support the vehicle on jack stands at the frame. Place a floor jack under the lower control arm to support it during installation.
3. Compress the front coilover spring using a spring compressor if required to fit the coilover into the IFS mount.
4. Insert the top of the RID12313510 coilover into the upper mount and secure with the supplied hardware. Hand-tighten only.
5. Lower the floor jack until the bottom of the coilover aligns with the lower mount. Install the lower mounting hardware and hand-tighten.
6. Set the ride height at the Ridetech recommended starting point by adjusting the threaded lower perch equally on both sides.
7. Torque all mounting fasteners to the specification in the Ridetech documentation.
8. Repeat for the opposite side. Lower the vehicle and bounce each corner to settle the suspension.
9. Set the rebound adjustment to the recommended starting position per Ridetech documentation before first drive.
10. Have the vehicle professionally aligned after installation.