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

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

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

How to Adapt LS Engine to 700R4 or Turbo 350 Transmissions

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

Speedway Motors, a manufacturer, retailer and distributor of high-quality automotive parts and racing products, announced today new products now available on their website.

New Product Spotlight - 4th Quarter 2025 - Parts to Fuel Your Passion

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

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

LS Swap Guide: GM 3 Speed / 4 Speed Parts List

Learn how to identfy motors for your LS Swap. In this guide we cover generation 4 small block engines and some of the cheaper options for more power.

Gen 4 LS Engines - Junkyard LS Swap Identification Guide: Part 2

In this Tech Tip, John answers a customer question about what would be needed to swap some additional power in place of his anemic 233c.i. Ford.

64 F100 Engine and Trans Upgrade

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

Engine Family Facets

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Auto Trans Control Units 4Th Gen Gm F Body

Torque Converter Hardware 4Th Gen Gm F Body

Auto Trans Overhaul Kits 4Th Gen Gm F Body

Auto Trans Input Shafts 4Th Gen Gm F Body

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4th Gen GM F-Body Auto Trans Dipsticks

4th Gen GM F-Body Auto Trans Dipsticks | Speedway Motors

Shop 4th Gen GM F-Body Auto Trans Dipsticks and get Free Shipping on orders over $175 at Speedway Motors.

4th Gen GM F-Body Auto Trans Dipsticks

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Products

TCI 743865 GM 700R4/4L60E/4L65E Black Trans Dipstick

Mr Gasket 9704G GM 700R4 Braided Transmission Dipstick

Lokar XTD-34L60FM Midnight Series Hi-Tech Dipstick, 4L60, Firewall Mnt

GM 700R4 Flexible 28-7/8 Inch Transmission Dipstick, Firewall Mount

Popular Parts