This genuine Scribner heavy duty case is made to fit four speed Jericos or T-10's. Keeps your transmission clean and undamaged and allows you to ship it via UPS. Not only do most NASCAR teams use these, transmission suppliers ship all their transmissions in Scribner cases. All cases include mounts and are stackable for storage or nestable when not in use. Manufactured from tough LLDPE polyethylene. Easy to clean, resistant to transmission oils and solvents. Overall dimensions are 17" x 20" x 45". Inserts available for T-10 and Jerico.