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Product Summary

5" Spring Diameter, 1"-8 Thread Pitch, Steel, Painted

  • Lightweight laser cut steel design
  • For use with 5" O.D. springs
  • 5 inches of extended webbing to help keep springs in place
  • Spud and jam nut to help eliminate spring-to-jack bolt misalignment and spring binding
  • IMCA Approved

Comes as a Kit

Key Specs

BrandSpeedway Motors

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Details

Kit Includes:

  • (1) Lightweight Extended Weight Jack Plate
  • (1) Weight Jack Bolts, Coarse Thread, 1 Inch
  • (1) Steel Hex Jam Nut, 1 Inch Weight Jack Bolt, Zinc Plated

 

Lightweight Extended Weight Jack Plate

  • 5 inches of extended webbing to help keep springs in place and to prevent unwanted chassis changes on the track under race conditions
  • Special 1", -8 welded spud allows the plate to be locked to a weight jack bolt with a jam nut to help eliminate spring-to-jack bolt misalignment and spring binding during normal suspension travel
  • Perfect for Sport Mods with an extreme left rear hike
  • Lightweight laser cut steel design
  • For use with 5" O.D. springs
  • IMCA Approved

 

Weight Jack Bolts, Coarse Thread, 1 Inch

  • Replacement weight jack bolt
  • Coarse thread
  • Cad plated for corrosion resistance
  • Includes a hole at the bottom for a cotter pin
  • 1.000" diameter is 8" long
  • IMCA Approved

 

Steel Hex Jam Nut, 1 Inch

  • Grade A jam nuts are low profile compared to a standard nut
  • Zinc plating, retards the corrosion rate in a normal atmosphere
  • Steel
  • 1" Diameter
  • 8 RH coarse thread
  • .547 thick
  • 1-1/2" wrench size
  • Specification: ANSI B18.2.2
  • IMCA Approved

 

Specifications

KEY SPECS
BrandSpeedway Motors
GENERAL
Speedway Motors Catalog Part #910-8978
Spring Diameter5"
Thread Pitch1"-8
Material TypeSteel
FinishPainted
Sold in QuantityKit