| Make | Model | Year |
|---|---|---|
| Ford | Aerostar | 1986-1997 |
| Bronco | 1985-1990, 1994-1995 | |
| Explorer | 1991-1995, 1997-2003 | |
| Mustang | 1987-1993 | |
| Ranger | 1985-2011 | |
| Sport Trac | 2001-2005 | |
| Thunderbird | 1987-1988 | |
| Mazda | B-Series | 1994-2009 |
| Navajo | 1991-1994 | |
| Mercury | Mountaineer | 1998-2003 |
| Merkur | Scorpio | 1988-1989 |
Zip Kit™ Valve Body Repair Kit (4R44E-5R55E-ZIP) by Sonnax®. The kit contains uniquely designed parts to prevent the loss of pressures within the main line, clutch apply control and lockup control circuits. The kit also seals multiple circuits known to suffer from end plug leakage or poor checkball sealing. No special tools are required for installing these parts. The kit also contains components to address forward and intermediate clutch failure, overdrive servo failure, soft shifts, intermediate roller clutch/mechanical diode failure, and low clutch apply pressure.
Searching for high-quality components for a successful torque converter rebuild? Want to keep your sophisticated modern transmission perform at its best? Looking to protect the driveline from over-torque damage? Then superior-grade Sonnex automotive parts are right up your alley. Through a fusion of innovative engineering, technical mastery, and precision manufacturing, these groundbreaking parts are sure to overcome OEM limitations. They will deliver significant performance gains to help you enjoy the best rides of your life! On top of this, Sonnex components are recognized for their strength and reliability. Whether you buy parts for daily use or racing applications, they will perform consistently for years to come. Designed for your specific vehicle, Sonnex parts are easy to install. And you’ll get all these benefits at competitive pricing!
Sonnax® has been bringing superior-quality transmission and drivetrain components to the automotive aftermarket since 1978. The company has everything you need to remanufacture torque converters, rebuild automatic transmissions, upgrade driveshafts, and protect the driveline from over-torque damage. Headquartered in southern Vermont, Sonnax is one of the fastest-growing companies in the state, boasting state-of-the-art design, development, and inspection facilities. Sonnax also has technical development centers in California, Georgia, New Jersey, Missouri, and Wisconsin. The company consists of 250 employees who take great pride in the Sonnax name and strive to further the company’s reputation for excellent technical knowledge and customer dedication. As a leading supplier to the automotive aftermarket, Sonnax exports to more than 70 countries and supports emerging markets worldwide.