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Product Summary

Universal Fit, Straight Axle Front Suspension Type

  • This Gasser Straight Axle Kit comes with the steering and brake components for an all-in-one kit
  • Recommended for off-road / drag race applications
  • Axle measures 50", giving it a hub width of 58-1/2" from hub face to hub face
  • Rotors measure 9-1/4" in diameter, and have a dual bolt pattern of 5 x 4-1/2" and 5 x 4-3/4"
  • Kit uses popular 1949-54 Chevy car modified spindles and kingpins, and dual multi-leaf springs

Key Specs

BrandSpeedway Motors
Front Suspension TypeStraight Axle
Control Arm StyleNot Included
Spring TypeLeaf Spring

Need To Know

Quick and Easy Returns

Details

One for show, One for go. Speedway brings to market a heavier duty application of their popular gasser axle selection. When your gasser tribute car has gotten a bit out of hand on your quarter-mile slips, you may want the added assurance that a stronger 3/8” thick wall axle provides. These axles are ideal for serious drag cars and heavier vehicle applications like 1955+ trucks and 1955-63 Chevy’s. A 28% improvement in strength will give you the added insurance that when the light turns green you can hang your hoops without worry.

These kits include our gasser straight front axle, semi-elliptical springs, spindles, king pins, steering arms, tierod kit, brake kit, and hardware. Choose either 5 on 4-1/2" or 5 on 4-3/4" bolt pattern with standard brake kit or Wilwood brake kit. Standard brake kits use new rotors and GM metric style calipers. Wilwood brake kit includes dual-drilled hub. Brake lines not included. Shocks not included, but shock mounts are included. Assembly required.

  • 50 Inch

Note: Wilwood brakes increase hub-to-hub width by 1".

  • Recommended for off-road / drag race applications

Item Details

49-54 Chevy Spindles w/ o/e style rotors/calipers, Specify bolt pattern,
44" Wide axle - 52 1/2" hub to hub.

46" Wide axle - 54 1/2" hub to hub.

48" Wide axle - 56 1/2" hub to hub.

50" Wide axle - 58 1/2" hub to hub.

Wilwood brake kit adds 1" to hub to hub widths above.

Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

Charts

Specs

HD Gasser Kit w/ "Chevy" Spindles

  • Heavy Duty Gasser Straight Axle
    • 28% stronger, 19% stiffer, 28% heavier
    • .375” wall thickness, 1026 DOM steel tubing (std axle is .25” wall)
    • Recommended for vehicles over 3600 lbs or drag race applications
    • *Note - the 50 Inch axle is 7.65 lbs heavier than a standard axle
  • Leaf springs, 31-1/4" long x 1-3/4" wide
    • 6 leaf, 1/4" thick
    • 400 lbs/inch spring rate
  • Chevy-style spindles (forged steel)
    • Modeled after the 1949-54 Chevy passenger car spindle

"Chevy" Spindle Standard Brake Kit

  • 5 x 4-1/2" Ford/Mopar bolt pattern
    • 9-1/4" vented iron rotor, .890" thick
    • Hub flange (hat) diameter - 5.74"
    • 1/2" Fine wheel studs
    • GM Metric '78-'88 calipers, 2-1/2" piston
    • 7/16"-20 banjo bolt to AN-3 line adapter kit
  • 5 x 4-3/4" GM bolt pattern
    • 9-1/4" vented iron rotor, .890" thick
    • Hub flange (hat) diameter - 5.74"
    • 7/16" Fine wheel studs
    • GM Metric '78-'88 calipers, 2-1/2" piston
    • 7/16"-20 banjo bolt to AN-3 line adapter kit

"Chevy" Spindle Wilwood Brake Kit (must use 15"+ wheels)

  • Forged Dynalite 4-piston Calipers
  • 10.75" x .810" Ultralite HP 30 Vane iron rotors
  • Wilwood Polymatrix-D Pads - very high cold friction, high fade/glaze resistance to periodic heat
  • Lightweight anodized aluminum Pro Street hubs
  • 1/2"-20 wheel studs

Guides & Documents

Specifications

KEY SPECS
BrandSpeedway Motors
Front Suspension TypeStraight Axle
Control Arm StyleNot Included
Spring TypeLeaf Spring
GENERAL
Suspension Height AdjustmentStock Height
Shock TypeNot Included
Spring Rate400 lbs.
FinishNatural
Bolt PatternDual: 5 on 4.5" | 4.75"
Rotor Diameter9.25 Inch
Spindle StyleChevy/GM Custom
Dropped SpindlesNo
Dropped AxleNo
Dropped Control ArmsNo
Front Leaf Spring StyleSemi-Elliptical Gasser
Spindles IncludedYes
Brakes IncludedYes
Steering IncludedYes
Caliper FinishNatural
Center to Center50"
Rotor Thickness0.88"
Hardware IncludedYes
Notes
Sold in QuantityKit
Rotor ShapeRound
Rotor TypeVented
Mounting Hardware IncludedYes
Welding RequiredYes