OTC's Mack transmission adapter is intended for use with OTC's 5019A transmission jack to safely and securely remove and install Mack T200 transmissions. High-strength steel construction ensures long term performance over the lifetime of the tool. 2-piece set. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.