Your Corner Wrench: Sometimes add-ons need a partner

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Whether you’re dressing up a newer ride just for looks, adding some new functionality, or trying to boost performance in a classic, sometimes you need more than just one part or kit. Here are a few common jobs that can bring a much better conclusion when you spend a little extra.

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Trailer hitches and brake controllers

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Hitches and their accompanying wiring used to be a very simple affair. Bolt on the hitch, plug in a simple 4-way trailer light harness, and you’re free to tow to your heart’s content. But take a look at new trailers lately and you’ll be surprised at the number of them that have electric brakes requiring a brake controller on the tow vehicle. Even some lightweight utility trailers come with this feature which can make towing a much safer and less white-knuckled affair. Opting for a 7-pin connector that will operate electric brakes and an electronic controller to keep those brakes performing well is a good idea. If your current trailer only uses the flat 4-pin connector, you can get a step-down adapter for the trailer wiring, but you can’t find a plug to step you up to the functionality of a 7-way.

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Headache racks

Pickup truck protection racks come as a pretty bare affair. Usually these metal racks that fit at the front of a pickup’s bed come as a simple perimeter frame with no screening or metal bars across them to protect the cab’s back glass against loose cargo. So when ordering one, ask what comes with it, and get the extras you’ll need to do the job. And don’t forget the mounting kit. As these racks are built to fit various makes and models, you’ll need a model-specific mounting kit to put things together.

Exhaust

It’s got to breathe in and out. I’m always amazed at the amount of resources and effort that enthusiasts will spend to improve a classic’s engine performance by improving the intake without also making the exhaust more free flowing. They’ll buy and install performance intake manifolds and larger-volume carburetors while leaving the stock exhaust manifolds and pipes in place. An engine has to inhale as well as exhale to work. A freer flowing exhaust is not necessarily louder, but will boost performance when done right.

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Tonneau covers and bed-liners

You might think these two popular truck accessories have nothing in common, but most owners will opt for a tonneau cover to help keep cargo dry as well as secure. But even with a tight-fitting cover, water will still get in the bed through the gaps at the bottom and sides of the tail-gate. Most good bed liners have ridged bottoms that can help keep your treasures high and dry.

Cargo racks and air deflectors

Getting a roof rack with a cargo basket is a great way to increase your ride’s carrying capability, but can create wicked wind noises and aerodynamic drag when loaded. Check to see if your choice of racks can accept an air-deflector to keep the wailing wind at bay while reducing the risk of losing any rooftop gear.