New from Summit – they are now offering Slapper-style CalTracs Traction Bars. These bars keep axle rotation in check by applying force upward on the spring and preventing spring wrap-up. See more details below.
Slapper-style traction bars keep axle rotation in check by applying force upward on the spring, preventing spring wrap-up and maintaining the proper pinion angle. CalTracs Traction Bars work better. They bolt to the front spring eye and the bottom of the rear axle, and use axle rotation to create downward force on the front of the spring. That prevents wrap-up and maintains the proper pinion angle, but more importantly, it applies forward motion at the front spring mount. This moves the instant center of the car further forward and shifts weight from the front to the rear of the vehicle. More weight at the rear means better traction off the line and improved 60-foot times.
We also have low-profile CalTracs bars for street-driven vehicles. The bars are adjustable, but have just one height setting for extra ground clearance. Summit Racing carries CalTracs for many leaf-spring cars and light trucks including:
- 1964.5-73 Mustang
- 1960-70 Falcon
- 1967-81 Camaro and Firebird
- 1962-77 Nova
- 1955-57 Chevy passenger car
- 1962-78 Mopar B-body
- 1982-2004 GM S-Series truck
- 1999-2017 GM Silverado/Sierra 1500
- 1999-2017 Ford F-150
- Keeps axle rotation in check by applying force upward on the spring
- Prevents spring wrap-up
- Maintains proper pinion angle