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
See more details

Key Specs

MFG. Part #
Front Suspension TypeStraight Axle
Suspension Height AdjustmentStock Height
Control Arm StyleNot Included
Shock TypeNot Included
See more specs

Need To Know

Quick and Easy Returns

Return Policy

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
MFG. Part #
BrandSpeedway Motors
Front Suspension TypeStraight Axle
Suspension Height AdjustmentStock Height
Control Arm StyleNot Included
Shock TypeNot Included
Spring TypeLeaf Spring
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 Pistons
Caliper FinishNatural
Hardware IncludedYes
Rotor TypeVented
Welding RequiredYes
Rotor ShapeRound
GENERAL
Sold in QuantityKit
Notes
Center to Center50"
Rotor Thickness0.88"
Mounting Hardware IncludedYes
Straight Axle StyleTube

Ratings & Reviews

4.8

6 Reviews

Overall Assessment

Customers praise the product's high quality and well-made parts, noting its reliability in different projects. Its ease of assembly is highly appreciated, adding to its practicality. The HD 58-1/2 straight axle kit, specifically, has been complimented as a convenient feature. Compared to competitors, users preferred our product for its compatibility and sturdiness, often choosing to repurchase for future usage, establishing trust in its consistently superior performance.

4.8

6 reviews

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Highly Recommend this kit!!

5.0

3 months ago

MAYHEM GARAGE

Daytona Beach

Verified

I made a 79 c10 short bed stepside street freek gasser homage!!

Would Recommend

I would buy again, Impressed !!

5.0

3 months ago

The2chance

Antioch Ca.

Verified

Bought this deal for my 57 Pontiac gasser build , very impressed with product. HD axle is no joke , beefy piece of iron. All parts needed are included and a nice bunch of pieces at that. Great deal

Would Recommend

I would buy again.

5.0

3 years ago

Leadfoot

Central MO.

Verified

This looks to be well made and all the parts fit as should, nice piece.

Would Recommend

Most Likely

4.0

4 years ago

willydude

Fair Oaks, CA

Verified

Gasser front suspension should work great in my project,

Would Recommend

I will be using this product again

5.0

4 years ago

Leading edge exhaust and customs.

Rainier, or

Verified

Very easy to understand and assemble.

Would Recommend

Would buy again

5.0

5 years ago

Sandman

West tn

Verified

Building 1936 Chevy lowcab gasser.Hand built 2x3 factory frame.Instead of trying to piece parts I went with HD 58-1/2 straight axle kit.Working out good for me.

Would Recommend

Showing 6 of 6 reviews

Questions & Answers

1 Question1 Answer

What comes with the wilwood option?

by Jackson

3 years ago

1 answer

1 of 1 questions shown

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