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

Check out this headlight wiring and taillight wiring diagram.

Headlight & Taillight Wiring Diagram

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

Engine Family Facets

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GMC V1500 4L70E Electrical, Lighting and Wiring Parts

GMC V1500 4L70E Electrical, Lighting and Wiring Parts | Speedway Motors

Shop GMC V1500 4L70E Electrical, Lighting and Wiring Parts and get Free Shipping on orders over $175 at Speedway Motors.

MSD 2770 Atomic TCU GM Harness 4L60-85E, 93-Up/4L70 06-09

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PSI Conversion HAR-4L80-1 Adaptor, 13 Pin 4L60-75E to 4L80E

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MSD 2771 Atomic Trans Controller GM Harness 4L70, 2009-Up

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MSD 2770 Atomic TCU GM Harness 4L60-85E, 93-Up/4L70 06-09

PSI Conversion HAR-4L80-1 Adaptor, 13 Pin 4L60-75E to 4L80E

MSD 2771 Atomic Trans Controller GM Harness 4L70, 2009-Up