Autobull bed rail mounting kit for tonneau covers

Compatible With All Autobull Tonneau Covers

Autobull Tonneau Cover Bed Rail Mounting Kit

Replacement J-clamps and mounting hardware to restore a tight, no-drill fit on your bed rail. Loose or corroded clamps are the most common reason a cover starts to shift — this kit fixes that without replacing the whole cover.

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Overview

Every Autobull tonneau cover mounts to the bed rail using a set of clamps rather than drilling into the truck. Over years of regular use, clamps can loosen or corrode, especially in climates with road salt or heavy rain exposure. This kit gives you fresh clamps and hardware sized to match the mounting system used across the Autobull lineup.

Re-torquing or replacing worn clamps restores the same tight, no-drill mount your cover had on day one, without needing to remove the cover from the truck entirely or buy a new one.

What’s Included

J-Clamps

A full set of replacement J-clamps sized to grip the standard factory bed rail profile.

Mounting Bolts

Bolts and washers sized to match the original clamp hardware.

Torque Guide

A printed guide with the correct torque spec so clamps seat evenly without over-tightening.

Rail Padding

Protective rubber padding for the clamp contact point, preventing scratches on the factory rail finish.

Checking Compatibility

This kit is sized for the standard J-clamp mounting system used across the Autobull hard top and soft cover lineup. If you’re not sure which mounting hardware your cover uses, check the model name on your original packaging or email us your truck and cover style and we’ll confirm before you order.

How Installation Works

  1. Loosen the old clamps. Remove the worn or loosened clamps from the bed rail.
  2. Clean the rail. Wipe down the contact point so the new clamps seat cleanly.
  3. Position the new clamps. Set the new J-clamps at each original mounting point.
  4. Torque to spec. Tighten each clamp evenly to the spec listed in the included guide.
  5. Recheck the fit. Confirm the cover sits square and doesn’t shift when pressed down.

Specifications

CompatibilityAll Autobull tonneau cover styles
MaterialSteel clamps and mounting hardware
IncludesJ-clamps, bolts, rail padding, torque guide
Tools NeededWrench or socket set
Install Time20–30 minutes
Use CaseLoose or corroded clamp hardware

Why Replace Your Mounting Hardware

  • Restores a tight, no-drill mount without replacing the whole cover
  • Sized to match the mounting system across the full Autobull lineup
  • Includes rail padding to protect your truck’s factory finish
  • Far less expensive than a full cover replacement

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Tonneau Cover Seal Kit Replacement Latch Kit Tailgate Seal

Frequently Asked Questions

How do I know if my mounting hardware needs replacing?

If the cover feels slightly loose, shifts when pressed, or the clamps show visible rust or corrosion, it’s a good time to replace them.

Will this fit my specific cover style?

This kit is sized for the standard J-clamp mounting system used across the Autobull hard top and soft cover lineup. Email us your cover model if you want to confirm before ordering.

Do I need to remove the whole cover to replace the clamps?

No. Clamps can typically be replaced one at a time while the cover stays mounted, as long as you support the cover while each clamp is loose.

What tools do I need?

A basic wrench or socket set is all that’s needed — the included torque guide tells you exactly how tight to go.

Get a Tight Mount Again

Fresh clamps and hardware restore a secure, no-drill fit in under 30 minutes.

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