My Bronco Wanders - WILD HORSES Parts & Accessories

Bronco Wandering

Item #: Caster
How can I stop my Bronco from wandering all over the road?

Description

Caster Angle
The caster angle is defined as the number of degrees backward (positive) or forward (negative) of the tilt of the king pins (Dana 30) or ball joints (Dana 44) in relation to a vertical line through the center of the front end.

Caster correction on lifts over 3.5"
These are our observations from years of building early Broncos. We know there are always exceptions to the rules, but we have noticed about 90% of Broncos with wandering problems are the result of incorrect caster. The specification for Bronco caster is +4 to +9 . When the Bronco is lifted the caster will move in the negative direction. Properly installed degreed C-bushings will move the caster back in the positive direction. Because of the caster issue about 50% of Broncos going to a 4.5" lift and most Broncos going to a 5.5" lift will need more caster correction than the standard 7 degree C-bushing. The additional correction can be addressed in a number of ways. These three are the most common.
  1. Radius arm drop brackets: Only drawback with this method is the unavoidable loss of ground clearance.
  2. Long radius arms: This is the most common method of correcting caster on taller lifts. Advantages include maintaining ground clearance, additional articulation off-road and improved handling.
  3. Bending the stock radius arms: We know this is old school, but long before degreed C-bushings people were lifting Broncos and bending the stock arms to achieve good caster.
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