Spohn Performance 207, Spohn Rear Lower Control Arms - Tubular Adjustable with Del-Sphere Pivot Joint/Poly Combo 1982-2002 GM Firebird V8 / V6
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|Spohn Performance 207, Spohn Rear Lower Control Arms - Tubular Adjustable with Del-Sphere Pivot Joint/Poly Combo 1982-2002 GM Firebird V8 / V6. |
The control arm bushings on F-Body vehicles have a significant impact on your vehicle’s ride, comfort, handling, acceleration, noise and vibration. When the vehicle leans (rolls) in a turn, one side of the chassis moves up relative to the rear axle and the other side moves down. The control arms must twist to allow for the axle to articulate, this causes the control arm bushings to bind. If this bind becomes excessive, it will raise the rear wheel rate and produce sudden and uncontrolled changes in handling such as snap oversteer.
The factory minimizes this suspension bind by using compliant rubber bushings. These soft bushings help accommodate the necessary motion of the control arms during body roll. However, the rubber bushings do not provide much in the way of forward and aft support which can cause wheel hop during hard acceleration and braking.
It is common to replace the stock rubber control arm bushings with polyurethane bushings to resolve the shortcomings of the factory's soft rubber bushings. Polyurethane bushings eliminate wheel hop, reduce axle deflection, and improve straight line traction. However, the downside of polyurethane bushings is they prevent the necessary movement of the control arms during body roll, which in turn produces significant binding in the suspension when the vehicle is cornering. The polyurethane bushings also place high stresses on the control arm mounts on the vehicle. Polyurethane bushed control arms do not allow for rotation of the control arm during cornering because of the stiffness of the bushings
Del-Sphere Pivot Joints:
The Spohn Performance Del-Sphere pivot joint solves the shortcomings of the factory rubber and aftermarket polyurethane bushings. Our Del-Sphere pivot joint incorporates a spherical ball which is surrounded by delrin bushing cups. This combination allows the control arm to articulate like a spherical rod end (28 degrees of available rotation) during cornering but the spherical ball does not allow the bushing to deflect during acceleration. This provides for great straight line traction like polyurethane bushed control arms but remains completely bind free like a spherical rod end during cornering for predictable traction in the corners.
4130N Upgrade: The ultimate in bullet-proof lightweight strength, 100% TIG welded 4130N chrome moly construction! Same as above, but constructed entirely from 4130N chrome moly tubing.
Priced per Pair -- Qty. 1 = 1 Pair
Fits Camaro and Firebird Models.
* Please note FREE Shipping refers to shipping within the contiguous contential US. All other locations extra.
With over 20 Years of Experience Spohn Performance's goal is to construct quality high performance components, and offer them to consumers at a fair price. Our entire operation revolves around that key word: Quality. We don't just say it, we practice it; all day, every day. When we do something, we do it right, or we don't do it! Our attention to detail is what has built our solid reputation, and will be the reason for our continued growth and success.
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Ownership: more than 1 year
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