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

A new print and digital magazine about all things classic truck and more, brought to you by some familiar names.

Classic Truck Performance

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Gen III/IV LS Engine ID Guide

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Transmission Interchange List Chevy, Ford, Mopar V8 Compatibility

Knowing popular engine dimensions and weights are critical to a successful engine swap in your project vehicle

Engines That Fit My Car: Dimensions for Common Engine Swaps

This slick grey 55 Chevy truck is as clean as they come, and there are more hidden details throughout than the subtle exterior would lead you to believe.

1955 Chevy Truck

Here's our attempt to do the impossible: pick a favorite GM truck design!

Pick a Side: What Was the Best Generation of GM Trucks?

In this Tech Tip, John answers a customer concerns about adding additional drop to his 1960-1972 Chevy truck.

Additional Drop on a Chevy Truck

Steve Silva's '52 3100 is an eye catching truck, and it's also hiding a few surprises that were integrated by one very clever and talented builder.

Steve's 1952 Chevy Truck

Read how to lower the rear of your 92-98 Chevy pickup using a DJM lowering kit. These tips are helpful for smooth completion.

Chevy Trucks: Rear DJM Suspension Drop

Engine Family Facets

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Chevy Inline 6 2004R Classic Truck Parts

Chevy Inline 6 2004R Classic Truck Parts | Speedway Motors

Shop Chevy Inline 6 2004R Classic Truck Parts and get Free Shipping on orders over $175 at Speedway Motors.

Chevy Inline 6 2004R Classic Truck Parts

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Chevy-to-BOP GM Turbo-Hydramatic Transmission Adapter Plate

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