Dial in front-end alignment with the Mevotech Supreme Alignment Caster / Camber Bushing MS40045, a front-axle bushing that sets the caster and camber angles at the steering knuckle. It's a direct-fit replacement for the front of the 2000-2005 Ford Excursion, 1999 Ford F-250, 1999-2004 Ford F-250 Super Duty, 1992-1997 Ford F-350, 1999-2004 Ford F-350 Super Duty, 1999-2004 Ford F-450 Super Duty, 1999-2004 Ford F-550 Super Duty, 1994-1999 Dodge Ram 2500, 1994-1999 Dodge Ram 3500 and 1994-1999 Ram 3500 — see the "Vehicles it fits" section for the full list and engine details.
- 0° Sleeve: a zero-degree sleeve that positions the pivot for a neutral alignment setting.
- Front location: installs at the front axle to help locate and adjust the caster and camber angles.
- Direct fit: a direct-fit replacement for the listed applications.
Signs this bushing may need replacing include uneven or accelerated front tire wear, a steering pull, or alignment angles that won't hold spec. If a worn or incorrect caster/camber bushing is the cause, replacing it with the MS40045 restores an adjustment point at the front axle. Have the alignment checked and set after installation.
Interchange: 19340558 · 23139 · IK8958 · K100337 · K8958
This part cross-references / interchanges with the following part numbers:
19340558, 23139, IK8958, K100337, K8958, MS40045
Frequently Asked Questions
What does this bushing do?
It's a front-axle alignment caster/camber bushing that sets the caster and camber angles at the steering knuckle, providing an adjustment point for front-end alignment.
What is the 0° sleeve?
The MS40045 uses a 0-degree sleeve, which positions the pivot for a neutral alignment setting.
Which vehicles does the MS40045 fit?
It's a front direct-fit for the 2000-2005 Ford Excursion, 1999 Ford F-250, 1999-2004 F-250/F-350/F-450/F-550 Super Duty, 1992-1997 F-350, and 1994-1999 Dodge Ram 2500/3500. See the "Vehicles it fits" section.
How do I know if it needs replacing?
Uneven or accelerated front tire wear, a steering pull, or alignment angles that won't hold spec can be signs. Diagnose the cause before replacing.
Do I need an alignment after installing it?
Yes. Have the front-end alignment checked and set after installation to bring the caster and camber angles to specification.
