4SpeedConversions.com is an online store that Specializes in Maintaining 3,4,5 and 6 Speed Manual Shift Vehicles, so if you're interested in Converting an Automatic Transmission to a Manual Transmission you've come to the right place!

4 Speed Conversions LLC is a family owned and operated business located in Southington, Ohio. The Owner and Operations Manager, Russ Young has been a mechanic for over 40 years and has a passion for Project Cars, Restoring Vehicles and Muscle Cars.

Russ has been researching General Motors Conversion Kits and conversion parts since before the inception of 4speedconversions.com in 2009, many people find him helpful in answering their technical questions and suggesting the proper parts to make a smooth conversion happen, ultimately making 4 Speed Conversions a Leading & Trusted Authority Site!

We carry New Old Stock, Used and Reproduction Parts at Great Prices and Information is Free!

Russ is dedicated to helping you with your questions and his professional advice if needed. He can be reached at 1-330-898-6989 or by email [email protected].

Office Hours:  *Monday - Friday 9am-4 pm EST       *Saturday-Sunday CLOSED                 


We usually ship orders the same day, or next day depending on the time your order is placed excluding Sundays and holidays.