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Control Arm Parts & Accessories - Caster Slugs
Caster slugs are used in the Slotted Cross Shaft of Upper Control Arms alowing you to fine tune your caster settings with out needed washers.

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Items 1-21 of 21
Description: Control Arm Caster Slug, 1/2 in ID Hole, 1/8 in Offset, Aluminum, Natural, Slotted Upper Control Arm Brackets, Each. More Details »
Item #: ALL60084
Condition: New
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Description: Control Arm Caster Slug, 1/4 in ID Hole, 1/8 in Offset, Aluminum, Natural, Slotted Upper Control Arm Brackets, Each. More Details »
Item #: ALL60082
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Description: Control Arm Caster Slug, 1/8 in ID Hole, 1/8 in Offset, Aluminum, Natural, Slotted Upper Control Arm Brackets, Each. More Details »
Item #: ALL60081
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Description: Control Arm Caster Slug, 3/8 in ID Hole, 1/8 in Offset, Aluminum, Natural, Slotted Upper Control Arm Brackets, Each. More Details »
Item #: ALL60083
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Description: Control Arm Caster Slug, 1/2 in ID Hole, Aluminum, Natural, Slotted Upper Control Arm Brackets, Each. More Details »
Item #: ALL60080
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Description: Upper Control Arm Mounts More Details »
Item #: HOW22001
Condition: New
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Price: $19.99
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Description: Control Arm Caster Slug, 1/2 in ID Hole, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15041
Condition: New
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Price: $10.95
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 1/2 Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15049
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 1/4 Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15045
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 1/8 Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15043
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 3/16 Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15044
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 3/8 Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15047
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 5/16 Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15046
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 7/16 Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15048
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 0 to 1/2 in Offset, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15050
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Price: $89.95
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Description: Control Arm Caster Slug, 1/2 in ID Hole, Slotted, Aluminum, Black Anodize, Joes Slotted Upper Control Arms, Each. More Details »
Item #: JOE15051
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Description: Control Arm Caster Slug, 1/2 in ID Hole, Aluminum, Natural, Slotted Upper Control Arms, Each. More Details »
Item #: UBM15-0040-A
Condition: New
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Price: $5.99
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 1/4 in Offset, Aluminum, Natural, Slotted Upper Control Arms, Each. More Details »
Item #: UBM15-0040-C
Condition: New
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 1/8 in Offset, Aluminum, Natural, Slotted Upper Control Arms, Each. More Details »
Item #: UBM15-0040-B
Condition: New
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Price: $5.99
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 3/8 in Offset, Aluminum, Natural, Slotted Upper Control Arms, Each. More Details »
Item #: UBM15-0040-D
Condition: New
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Description: Control Arm Caster Slug, 1/2 in ID Hole, 3/8 in Offsets, Aluminum, Natural, Slotted Upper Control Arms, Kit. More Details »
Item #: UBM15-0040
Condition: New
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Price: $25.99
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Items 1-21 of 21


More About Caster Slugs

Using A-Arm slug to adjust your A-Arm inner pivot points gives you an easy and repeatable way to adjust your Front Roll Center right at the track.

You can move the lower points too, but you bring in rack location issues and bump steer corrections. If you take the time in your shop and know which rack spacers and lower pivot slugs to use at the track you could bolt in the new slugs quickly giving you more options. Your options need to consider camber change curves, static settings and bump steer effects. Changing the lower angles relieve you of camber curve considerations but are more time consuming so a focus on the upper A-Arms may be the best trackside compromise?