We help determine what are the best 10-spline quick change gear ratios for your street or racing needs

Quick Change Gear Chart | RPM Gear Ratio Formula for 10-Spline

Tim talks about our Winters quick change rear end & components.

Speedway Tech Talk - Quick Change Rear Ends & Components

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

Quick Change Bolt On Components for a Modified Race Car

Speedway Motors announced today a list of new products that will be debuted Aug. 5-8 at National Street Rod Association’s (NSRA) 52nd Annual Street Rod Nationals in Louisville, Ky.

Speedway Motors to Debut New Products  at 52nd Annual Street Rod Nationals

Speedway Motors, a manufacturer, retailer, and distributor of high-quality automotive parts and racing products, will introduce a number of new products in their booth (#23791) at the 2025 SEMA Show Nov. 4-7 in Las Vegas, Nev.

Speedway Motors Introduces New Products at 2025 SEMA Show

Speedway Motors, a manufacturer, retailer, and distributor of high-quality automotive parts and racing products, will introduce new racing products in their booth (#4101) at the 2025 PRI Show Dec. 11-13 in Indianapolis, Ind.

Speedway Motors to Introduce New Racing Products at 2025 PRI Show

Speedway Motors announced today the introduction of a new IMCA Modified Spec Racing Engine as they kick off the 2025 race season along with discounts Jan. 27-Feb. 2 to help their customers get ready for race season.

Speedway Motors Introduces New IMCA Modified Spec Racing Engine as they Kick Off 2025 Race Season 

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

The small block Chevy is still a great option for your muscle car, hot rod, or classic truck, just follow our build lists

SBC 350 Build Combinations: Recipes for 300-600+ HP

This Chevelle project gets rewired with a Speedway Motors 22 Circuit wiring kit.  Follow along as Jeff guides you through this application, starting with a good mounting location for the fuse box. Learn more on continuity, grounding and relays.

Installing a Speedway Motors 22 Circuit Wiring Kit

Engine Family Facets

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Speedway Motors Quick Change Gear Service Kits

Speedway Motors Quick Change Gear Service Kits | Speedway Motors

Shop Speedway Motors Quick Change Gear Service Kits and get Free Shipping on orders over $175 at Speedway Motors.

Speedway Motors Quick Change Gear Service Kits

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Speedway Motors Quick Change Gear Service Kit, Winters Gears

Speedway Motors Quick Change Gear Service Kit, Polished LW Gears