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

Testing a 2 or 3 wire speed sensor sounds difficult, but these videos show that it actually is quite easy!

Testing 2 and 3 Wire Speed Sensors

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

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

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

Tachometer Wiring (Digital)

Speedway Motors employee Steve upgraded the trailing arms on his 1976 Chevrolet Laguna with some spherical bushings.

Spherical Bushings for GM A-Body Trailing Arms

The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. Here's what you need to know about GM's famous 4-speed automatic.

700R4 Transmission Complete Guide | Diagrams, HP Ratings, FAQ

Learn how to replace a fuel sending unit. Our fuel gauge sending unit guide and installation video covers all you need to match your fuel sender and gauge.

Replacing Fuel Sending Unit

Check out this headlight wiring and taillight wiring diagram.

Headlight & Taillight Wiring Diagram

Engine Family Facets

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73-77 GM A-Body TH400 Speedometer Wiring and Senders

73-77 GM A-Body TH400 Speedometer Wiring and Senders | Speedway Motors

Shop 73-77 GM A-Body TH400 Speedometer Wiring and Senders and get Free Shipping on orders over $175 at Speedway Motors.

73-77 GM A-Body TH400 Speedometer Wiring and Senders

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Lokar SP-1502U108 U-Cut-to-Fit Ford Speedometer Cable Kit, 108 In

Classic Instruments SN74Z Speed Signal Interface Module