How To Install Hidden Tailgate Latches – Classic Chevy Truck

10/01/2018

How To Install Hidden Tailgate Latches – Classic Chevy Truck

10/01/2018

Few things are less rudimentary on stepside trucks than a chain-link latch pin (hook) setup. Obtrusive, clunky, and the “best” way to scratch up a nice paint job—yet they were the norm for GM stepsides clear up to 1987. Other than swapping the chains for smaller-diameter, vinyl-coated braided cable, for those who want a cleaner look that still affords a manner in which to keep the gate from dropping on the ground when released, there is an answer. Brothers Trucks has a combination of components comprising a pretty neat “kit” to solve that rudimentary aspect in a less obtrusive yet more functional manner. To eliminate the chains, their fleetside-style stainless links integrate into the tailgate with minor modification; the spring-loaded latches hide within the top roll of the gate, with access from the inner side; urethane hinge bushings provide a smoother operation—all together making a clean chainless setup that works as well as, if not better, than a modern tailgate latching mechanism. While installation is not quite as straightforward as bolting components in place, the cutting and drilling (and subsequent welding/grinding for those who wish to finish off the bedside rails) is rather simple, even for the novice builder. Brothers even supplies laser-cut sheet metal templates for integrating the links, allowing you to precisely plot and make cuts and drill holes in the gate and bedrails as well.

Hidden tailgate latch/link essentials (R-L): urethane hinge bushings, stainless spring-loaded latches, and polished link

Using the supplied template, attach to the inner vertical bedside rail (tailgate channel) with the notching facing inward toward the cab, as shown. Mark and drill a 5/16 hole on each side.

Install the supplied stainless fixed pivot pins with the button-head Allen bolts.

Using the same templates, place and align on the inside face of the tailgate, as shown. Set approximately 3-11/16 inches above the bottom of the gate, which should place the top of the template 14-15/16 from the bottom.

Mark the area of the notch onto the tailgate skin clearly with a marker or paint pen.

Using a thin-bladed cutoff wheel, trim out the marked area; deburr any sharp edges with a file.

Brothers’ urethane bushing upgrade replaces the antiquated steel-on-steel tailgate pivot. As the originals are male and female oriented (R and L), insert the left side into the tailgate while bolted the right to the bed rail.

With the gate modified, set it into place with the new bushings and hang the links onto the installed pivot pins; support and level with the bed itself (not the ground). Secure the links to the gate sides with a clamp; drill two 1/4-inch holes.

Installed the stainless hardware with the nyloc half-nuts on the link side (so the button heads are visible when the gate is closed).

Now that the tailgate is hung, prepare for the hidden latch install by marking the location on each side by spotting the holes with the disassembled latch tube and appropriate sized center punch

We made holes using a 5/8-inch Rotabroach cutter on a pneumatic drill. The hole will locate near the inside edge of the tailgate’s top rail (for the spring-loaded lever). Transfer the hole placement on the bedside where the locking pin will insert when the gate is fully closed.

Next, using the latch tube for reference, laid on the gate positioned as it will install, mark the area to slot for the lever, as well as the anchoring bolt hole.

Deburr and clean up the slotted hole once you finished trimming it out.

Insert the still-disassembled latch tube and install it with supplied hardware. (You can see Scudellari still has some cleaning up to do on his slot before paint!)

Reassemble the latch mechanism by installing the (greased) spring and locking pin followed by the actuating knob.

The rubber grommet provided is used in the 1/2-inch hole drilled in the bedside rail for the lock pin.

Verify there’s no interference of any components in the operating of the latch mechanism. Using high-quality grease with the assembly will help ensure smooth operation.

With fit and function set, we finished off the job by cutting the original chain pin tabs off and filling in the notch on the bed rail, as such. .

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