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  1. J&M 79-2004 Mustang Rear Lower Control Arms (Street / Race)
    $212.27
    SVT Cobra:1994:1995:1996:1997:1998 Mustang GT:1994:1995:1996:1997:1998 Mustang 5.0L:1986:1987:1988:1989:1990:1991:1992:1993 Learn More
  2. J&M 79-2004 Mustang Street / Race Rear Lower Control Arms with Weight Jack Spring Perch
    $305.74

    Features:     
    Ride Height Adjustment allows you the flexibilty to meet your driving needs.
    Lower your vehicle 1" or raise it by 2" by using our NASCAR style weight jack system!    
    Reduces wheel hop & improves traction by eliminating control arm flex    
    Teflon lined spherical bearing on the axle side eliminates any unwanted bushing bind and deflection    
    Rugged (1.75" f & b-body) (2.00" mustang) diameter steel tubing with new pulse mig welds    
    Durable black powder coated finish    
    Easy installation with no modifications    
    NEW!! PATENT PENDING 3 piece Poly-Ball Bushings

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  3. J&M 79-2004 Mustang Rear Lower Control Arms (Street)
    $181.55

    Poly-Ball Bushings:
    5 degrees of total rotation = 26.1 foot/pounds of torque
    7.5 degrees of total rotation = 35.8 foot/pounds of torque
    10 degrees of total rotation = 41.7 foot/pounds of torque   

    Standard 2 piece setup using only 85 durometer bushings:   
    5 degrees of total rotation = 124.7 foot/pounds of torque 
    7.5 degrees of total rotation = 156.4 foot/pounds of torque 
    10 degrees of total rotation = not measurable with fixture. 
    The 1/2" grade 8 bolt twisted in half at 9.2 degrees which was 210 foot/pounds of torque.

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  4. J&M 79-2004 Mustang Rear Lower Street Control Arms with Adjustable Weight Jack Spring Perch
    $275.01

    3 Piece Poly-Ball Bushing on Chassis & Axle Side

    The control arm bushings found in the Mustang automobiles can have a significant impact on the vehicle’s ride, comfort, handling, acceleration, noise and vibration. When the car leans (i.e., rolls) in a turn, one side of the chassis moves upward relative to the rear axle, the other side moves downward, and 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, uncontrolled, undesirable changes in handling (e.g., snap oversteer).

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