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

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

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

Speedway Motors employee Pat O. is back to talk Ford Automatic OverDrive Kickdown brackets and kits.

Ford AOD Transmission Kickdown Kit

We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. We'll also walk you through choosing the correct parts in order to make this installation a breeze!

Adapting Tremec's Popular T5 5-speed Manual to Ford's Flathead V8 Engine

Leave all the head scratching to us, as we have your manual transmission bellhousing solution for your LS swap all figured out already

Easily Back Your LS Swap with The Manual Transmission of Your Choice

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

Upgrading to (or updating a poorly designed) independent front suspension, or IFS, will vastly improve your classic muscle car, hot rod, or pickup truck’s braking and handling

Independent Front Suspension System Upgrade Choices

Check out these tips on T-5 transmissions!

T-5 Transmission 

Our Tech Expert installs an F1 steering box in his roadster to give the steering a traditional feeling. Follow his process from testing fit to welding.

Installing a F1 Steering Box In A Roadster

Engine Family Facets

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F-Series 4L80E Auto Trans Dipsticks

F-Series 4L80E Auto Trans Dipsticks | Speedway Motors

Shop F-Series 4L80E Auto Trans Dipsticks and get Free Shipping on orders over $175 at Speedway Motors.

F-Series 4L80E Auto Trans Dipsticks

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Lokar TD-34L80FM Hi-Tech 4L80E Transmission Dipstick, Firewall Mount

Lokar XTD-34L80FM GM 4L80E Black Hi-Tech Transmission Dipstick

Lokar TD-34L80FM36 4L80E Transmission Dipstick-Firewall Mount, 36 Inch

Lokar XTD-34L80TM Midnight Series Hi-Tech Trans Mnt Dipstick, GM 4L80E

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