American Autowire steering column wiring kit for 1969+ GM — 3-7/8" & 4-1/4" connectors, full terminal set

Complete steering column wiring kit for 1969 and newer GM vehicles, including both 3-7/8" and 4-1/4" male/female connectors and all required terminals.

This American Autowire 500428 kit supplies the connector hardware and terminals needed to restore or replace wiring at the steering column on GM cars and trucks built from 1969 onward. Instead of splicing or adapting mismatched plugs, the kit gives you factory-style male and female connectors in the two common lengths used across GM applications, plus a full set of crimp terminals to make solid, serviceable connections.

Which GM steering columns will this kit fit?

The 500428 is designed to work with GM steering columns from 1969 and later where the industry uses the two standard connector sizes. It covers many classic and first-generation trucks as well as later-model passenger cars that retained the same connector types.

• Covers 1969 and newer GM steering column applications
• Includes both 3-7/8" and 4-1/4" connector lengths to match factory harnesses
• Suits restoration, repairs, or custom harness builds

What exactly is included in the kit?

Inside the 500428 you'll find one male and one female 3-7/8" connector, one male and one female 4-1/4" connector, and a complete assortment of terminals so you can assemble the plugs to your vehicle's wires. The kit is intended to remove guesswork when replacing worn or damaged column connectors.

• (1) Male and (1) Female 3-7/8" connector
• (1) Male and (1) Female 4-1/4" connector
• Complete set of crimp terminals for secure wiring

How do these connectors improve a rebuild or repair?

Factory-style connectors restore reliable electrical and mechanical fit at the column junction, reducing intermittent faults caused by corroded or brittle factory plugs. Using proper terminals and matching connector lengths makes future service easier and preserves vehicle originality.

• Precision-fit connectors for secure mating and reduced vibration issues
• New terminals ensure proper crimps and consistent electrical contact
• Maintains serviceability and original routing for easier troubleshooting

What tools or skills are needed to install these connectors?

Basic wiring skills and a crimping tool are recommended to install the terminals cleanly and reliably. If you plan to reuse wires, you may also need terminal removal tools; for full harness replacements, wire strippers and a quality ratcheting crimper will speed the job.

• Wire stripper and quality crimping tool for dependable terminations
• Optional terminal extraction tool for removing old pins
• Heat-shrink or electrical tape to protect and bundle connections

Who this kit is for: The American Autowire 500428 is aimed at classic car restorers, professional mechanics, and DIY enthusiasts working on GM vehicles from 1969 onward who want factory-style connector replacements. If you need reliable, serviceable column connections without cutting corners or adapting mismatched plugs, this kit gives the correct connector lengths and all the terminals to finish the job cleanly.