Differential Rear-End Gear Calculator
Technical Info

Differential Gear Ratio Calculator

Enter the maximum potential safe engine RPM. Enter the tire size diameter and the target vehicle speed in MPH. Click “Calculate Differential Gear Ratio”. The value will be returned in estimated differential gear ratio, based [Read More…]
Rear-End Widths of Classic American Cars
Technical Info

Rear-End Widths of Classic American Cars

Chevy / Chevrolet Outside Width Year Model 57.75 1962-1964 Chevy II/Nova 57.75 1965-1967 Chevy II/Nova 58.00 1978-1988 Chevy Malibu, Monte Carlo 59.50 1968-1982 Corvette 60.00 1955-1964 Chevy Car 60.00 1967-1969 Camaro 60.25 1968-1979 Chevy II/Nova [Read More…]
How Differential Gears Work
Automotive Basics

Understanding Differential Gears

I got into a discussion some time ago about welding a rear-end on a street vehicle. It became clear that the guy I was discussing this with did not fully understand how a differential works. [Read More…]
Axle Flange Housing Identification
Technical Info

Axle Flange Housing Identification

Chevrolet, Ford, Oldsmobile, Pontiac — they all use different axle flanges. The ability to identify the flange you have can save time and hassle when it comes time to buy parts. Use the figure below [Read More…]
Differential Identification Chart
Technical Info

Differential Identification Chart

Your differential is the set of gears that allows your vehicle’s driven wheels to revolve at different speeds by splitting your engine torque in two directions… AMC 12 Bolt AMC Model 20   Chrysler 10 [Read More…]