This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

How to Identify GM Transmissions | 700R4, TH350, 4L60, TH400, 4L80e, Powerglide, & More

Learn how to install a side detent shifter in a 1969 Chevy C10.

How to Install Side Detent Shifter for GM TH200, TH250, TH350, and TH400

Electrical wiring is one of those tasks that enthusiasts dread tackling on their own. We're here to tell you that wiring your project vehicle is something you can do with a little help from your friends at Speedway Motors!

The Best Wiring Solution for Your Hot Rod or Muscle Car Project

Check out this headlight wiring and taillight wiring diagram.

Headlight & Taillight Wiring Diagram

Read how to wire a lightning sprint engine. This detailed account of how to successfully wire an engine will ensure a smooth installation.

How to Wire a Lightning Sprint Engine

Learn how to install spark plug wire terminal ends. Our step by step guide takes you through terminal end and boot installation with the use of a wire crimping tool.

How To Crimp Spark Plug Wires and Install Boots

Watch our Steering Column Wiring Guide video for useful tips on wiring your new steering column for your vehicle. Ididit takes you through the wiring process.

Steering Column Wiring Guide

This Chevelle project gets rewired with a Speedway Motors 22 Circuit wiring kit.  Follow along as Jeff guides you through this application, starting with a good mounting location for the fuse box. Learn more on continuity, grounding and relays.

Installing a Speedway Motors 22 Circuit Wiring Kit

Speedway Motors employee Pat O. talks about the King Bee Headlight and a few conduit options available at Speedway Motors.

Speedway Tech Talk - King Bee Headlights & Conduit Options

Learn how to install and wire a digital tachometer. Speedway Motors covers the entire process with our installation of the Acewell 1100 Digital Tachometer.

Tachometer Wiring (Digital)

Engine Family Facets

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Oldsmobile TH400 Truck Accessories Electrical, Lighting and Wiring Parts

Oldsmobile TH400 Truck Accessories Electrical, Lighting and Wiring Parts | Speedway Motors

Shop Oldsmobile TH400 Truck Accessories Electrical, Lighting and Wiring Parts and get Free Shipping on orders over $175 at Speedway Motors.

Oldsmobile TH400 Truck Accessories Electrical, Lighting and Wiring Parts

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TCI 880042 GM TH400 Driven Gear Housing

TCI 880043A GM TH400 Driven Gear Housing