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 a side detent shifter in a 1969 Chevy C10.

How to Install Side Detent Shifter for GM TH200, TH250, TH350, and TH400

It may feel like a daunting task attempting to determine the best leaf spring for your traditional hot rod straight axle build, but our buyer's guide will surely help.

Front Spring Choices for Traditional Straight Axle Hot Rods

Learn how to mount a traditional transverse rear leaf spring. These tips will help the installation run smoothly and successfully.

Mounting a Traditional Transverse Rear Leaf Spring

Choosing the right suspension products when building your street rod or custom car. A step by step on how to determine which parts are needed for installation, how to calculate the spring rate and other helpful tips along the way.

Installing Torsion Bars in Street Rods

Incorporating a Model A rear cross member and a high arc stock spring into a roadster build.

Using a High Arc Spring Suspension on a Model A Roadster

Speedway Motors created a new expansion tank for coolant or oil that is well hidden and mounts inside the fender or on the front of the core support. Watch this video to learn how to install the tank.

Speedway Motors Aluminum Hidden Expansion Tank Installation - Tech Talk

Learn the importance of maintaining the right pressure in your tires for longer wear, enhanced handling and to get better fuel economy.

Tire Pressure in Your Street Vehicle

Follow along as we install a Pete Jackson Noisy Gear Drive on a Chevy 454. Learn about the installation process from Speedway Motors Street Tech Kevin.

Installing a Pete Jackson Gear Drive On a Chevy 454

Tim talks about a few aluminum radiators we have to offer.

Speedway Tech Talk - Hot Rod Aluminum Radiators

Engine Family Facets

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Oldsmobile Street Th400 Auto Trans Governors

Oldsmobile Street Th400 Auto Trans Valve Bodies

Oldsmobile Street Th400 Auto Trans Kick Downs

Oldsmobile Street Th400 Auto Trans Overhaul Kits

Oldsmobile Street Th400 Torque Converter Hardware

Oldsmobile Street Th400 Torque Converters

Oldsmobile Street Th400 Auto Trans Vacuum Modulators

Oldsmobile Street Th400 Auto Trans Input Shafts

Oldsmobile Street Th400 Auto Trans Dipsticks

Oldsmobile Street Th400 Auto Trans Oil Pans

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Oldsmobile TH400 Street Auto Trans Accumulator Piston Springs

Oldsmobile TH400 Street Auto Trans Accumulator Piston Springs | Speedway Motors

Shop Oldsmobile TH400 Street Auto Trans Accumulator Piston Springs and get Free Shipping on orders over $175 at Speedway Motors.

Oldsmobile TH400 Street Auto Trans Accumulator Piston Springs

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Application

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Products

TCI 224300 TH400 Pressure Regulator Spring

TCI 221600 Direct Springs for TH400 High Gear

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