Product Summary

Front Position, 10.50 Inch Rotor Diameter

  • Forged, heat treated steel
  • Precision OEM geometry. Direct replacement for factory spindle
  • Approved for use in IMCA sanctioned events
  • Three piece design for quick, easy replacement. Replacement parts available separately
  • 10 1/2" rotors with 5 x 5" bolt circle pattern

Comes as a Kit

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Key Specs

MFG. Part #91031890
PositionFront
Wheel Bolt Pattern (in.)5x5 in.
Wheel Bolt Pattern (mm)5x127 mm
Rotor Diameter10.50 Inch
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91031890 Details

Speedway Motors is proud to introduce our exclusive 3-piece 1979-Up GM Metric midsize spindle and rotor front end kit for even more value-added savings! Our advanced engineering techniques allowed for the recreation of an OEM spec spindle in a newly forged, heat-treated steel design that is stronger than the original. The unique three-piece spindle construction provides for fast, convenient and affordable replacement of individual components in the event of a crash. These spindles IMCA/USMTS/USRA approved for use in competition.

Kit includes 2 spindles, 2 bolt-on steering arms, 2 metric caliper brackets, 2 Wilwood 160-9239LS rotors, 2 bearing/seal/lock nut kits, and necessary hardware. Assembly is required. ‘Metric’ GM calipers and slider bolts are sold separately and available as suggested below.

  • Forged, heat-treated steel
  • Precision OEM geometry
  • Direct replacement for factory spindle
  • Approved for use in IMCA/USMTS/USRA sanctioned events
  • Three-piece design for quick, easy replacement
  • Replacement parts available separately
  • 10-1/2" Wilwood rotors with 5 on 5" bolt circle pattern
  • Second bolt pattern in rotors is not usable due to thin material in that area
  • Metric GM design

IMCA Approved.

Speedway Motors 91031890 Specifications

KEY SPECS
MFG. Part #91031890
BrandSpeedway Motors
PositionFront
Wheel Bolt Pattern (in.)5x5 in.
Wheel Bolt Pattern (mm)5x127 mm
Rotor Diameter10.50 Inch
Rotor TypeVented
Parking Brake ProvisionNo
Minimum Recommended Wheel Diameter14 Inch
Rotor ShapeRound
Hardware IncludedYes
Rotor StylePlain Face
Spindle TypeChevy
Front Rotor IncludedYes
Front Rotor Diameter10.50 Inch
Front Caliper IncludedNo
Rear Caliper IncludedNo
Front Spindles IncludedYes
Master Cylinder IncludedNo
Brake Booster IncludedNo
Brake Hoses IncludedNo
Rear Rotor IncludedNo
Bolt Pattern5 on 5"

Questions & Answers

6 Questions • 6 Answers

I see the rotors have 2 bolt patterns , can you knock the studs out and move them to achieve a 4.75" bolt pattern instead of the 5"

by dustin

• 2 years ago

1 answer

DIRT MODIFIED IMPALA FRT CLIP 1979 WILL THEY WORK IFYOU RUN A 1INC EXTENDED BALL JOINT ON UPPER CAR IS ALL TUBULAR CONTROL ARMS RHULMAN LOWERS GRT TYLE UPPERS

by reaper

• 9 years ago

1 answer

Would this fit on a 1968 chevelle without to much modification

by aj

• 9 years ago

1 answer

how tall is this spindle

by late17

• 10 years ago

1 answer

Would these spindles fit on a rear steer clip, mine is 69 impala rear steer car in need of spindles

by Rob

• 10 years ago

1 answer

What is the kingpin inclination 7 deg or 10

by Chuck

• 11 years ago

1 answer

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