Product Summary

Universal Fit, 6.88" Mounting Bolt Center to Center

  • Tubular steel construction with aluminum cross shaft for the ultimate in weight savings
  • Bolts to stock 1978-87 Metric (G body) frame mounts which are 6-7/8" center-to-center
  • Use with frame mount 91634312 when relocating stock frame brackets
  • This factory replacement upper ball joint matches OEM geometry and fits a variety of GM cars and trucks
  • Castle nut, cotter pin, grease zerk, and hardware are included to simplify installation

Comes as a Kit

Key Specs

MFG. Part #9100317
Control Arm StyleTubular
Ball Joint TypeBolt-in
Bushing MaterialSteel

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Speedway Motors 9100317 Details

Control Arm

These oval track racing A-arms are 40% stronger than the stock stamped steel arms. The A-arms bolt to your stock mounts and accept stock ball joints. These control arms have a 1/4" thick steel plate where the ball joint bolts in. Fits 1978-87 mid-size GM Metric chassis.

  • Steel construction
  • Aluminum cross shaft
  • Bolts to stock 1978-87 Metric mounts (6-7/8" center-to-center)
  • Greaseable steel bushings
  • 2 - Right Hand Arms

Use with mount plate 916-34312.


Ball Joints

These are factory replacement upper ball joints with OEM geometry. The upper bolt-in ball joint fits stock upper arms and our Metric tubular arms designed for racing use. For a 1/2" raised pivot point upper, use 106-200322LF.


Kit Includes

(2) Speedway Right Side Chrome Moly Metric Upper Control Arm-Oval Track

(2) Speedway 1970-02 GM K5208 Style Upper Ball Joint

Speedway Motors 9100317 Specifications

MFG. Part #9100317
BrandSpeedway Motors
Control Arm StyleTubular
Ball Joint TypeBolt-in
Bushing MaterialSteel
Mounting Bolt Center to Center6.88"
Material TypeSteel
Cross Pin MaterialAluminum
Ball Joint IncludedYes
Sold in QuantityKit
Tube O.D.1.00"
Shaft Diameter.725"