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Mustang Bump Steer Kits

Late Model Restoration is your #1 source for Mustang bump steer kits! Whenever you hit a bump and the car has a tendency to "steer" itself in a different direction, that is called bump steer. Whenever a Mustang is lowered, it changes the steering rack angle which makes the car susceptible to bump steer. This is easily fixed with a bump steer kit which puts the tie rods back into correct alignment with the steering rack. Late Model Restoration offers a variety of bump steer kits from great brands like Steeda, BBK, Maximum Motorsports and more! We also offer a bump steer gauge for the hard core racer to fine tune his suspension! Shop our Mustang bumpsteer kits below now!

These Mustang bump steer kits fit: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017 Mustang.

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1979-93 Mustang Bump Steer Kits

1994-04 Mustang Bump Steer Kits

2005-14 Mustang Bump Steer Kits

2015-20 Mustang Bump Steer Kits

Mustang Bump Steer Kits Tech Info

Definition of bumpsteer: Bump-steer is a change in toe* angle caused by the suspension moving up or down. Bump-steer is built into the geometry of the suspension and steering system, and has nothing to do with turning the steering wheel. The effect of bump-steer is for the wheel to toe-in or toe-out when the suspension moves up or down. This toe change or "steering" occurs any time the suspension moves, whether it is from body roll, brake-dive, or hitting a bump in the road. Bump steer is undesirable because the suspension is steering the car instead of the driver.

Cause of bumpsteer: The front wheels do not move directly straight up or down when the car hits a bump. Instead, the wheel follows an arc, or curving path, that pushes the wheel slightly inward (towards the centerline of the car) or outward (away from the car) in response to vertical wheel movement. The outer tie-rod (which connects the steering rack to the wheel) also moves in-and-out in an arc as it moves up and down. If the rate which the outer tie-rod arcs in or out does not match the rate the wheel moves in or out, the wheel will be turned by the tie-rod. This is bumpsteer.

The center point of the arc traveled by the wheel (known as the instant-center) is controlled by the location and angle of the moving suspension links. This point moves as the ride height changes. In contrast, the arc of the outer tie-rod is controlled by the position of the steering rack, which is fixed. In order to eliminate bumpsteer, both the length and the center point of the two arcs must be the same. However, since the instant center moves with ride height, bumpsteer cannot be eliminated throughout the entire range of suspension travel. Therefore suspension designers concentrate on minimizing bumpsteer within the range of movement closest to factory ride height. Changing the ride height or other suspension components may move the suspension outside this narrow "optimized" window.