A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.

Universal Wiring Harness Instructions - Installation

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

Speedway Economy 12 Circuit Wiring Harness

If you're ready to swap an LS engine into you '73-'87 Squarebody Chevy or GMC truck, here's a guide to get you started and a parts list to help you get everything you need for your swap.

Squarebody LS Swap Guide | 73-87 C10 Parts List

How to plan and execute a LS swap into any 1973-1987 Chevy/GMC K10 pickup truck.

Squarebody LS Swap Guide | 73-87 K10 Parts List

Looking for a performance or custom brake set-up? Whether you're replacing components or building your brakes from scratch, you may wonder what size master cylinder or booster to use. No need to worry, just follow our handy guide.

Braking Components - Selection and Design

Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility.

GM Steering Column Compatibility, Interchange & Repair Guide

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend

5.3 LS Build Combinations: Recipes for 400-700+ HP

Check out these tips on T-5 transmissions!

T-5 Transmission 

This video is a step-by-step guide on how to properly install a wrap-around 5 point harness seat belt. Joe and Kyle also talk about the benefits of the Speedway Motors 5 point harness seat belt combo.

How to Install a Wrap-Around 5 Point Harness Tech Talk

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

Replacing a G-Body 7.5" Bolt Rear End

Engine Family Facets

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GM B-Body T5 Wiring Harness and Components

GM B-Body T5 Wiring Harness and Components | Speedway Motors

Shop GM B-Body T5 Wiring Harness and Components and get Free Shipping on orders over $175 at Speedway Motors.

GM B-Body T5 Wiring Harness and Components

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Holley 558-473 Chrysler 46RE Trans Control Harness, Term X Max