• inventory
    • Brake Systems
    • Chassis & Suspension
      • Chassis Components
      • Steering Components
      • Suspension Components
    • Engines
      • Car Engine
      • Crate Engines
        • Short Block Engines
      • Engine and Transmission Combos
      • Horizontal Engines
      • Vertical Shaft Engine For Sale
    • Exhaust
    • Generators
      • Commercial Generators
      • Generator Transfer Switch
      • Standby Generators
      • Generators, Marine Generators
      • Marine Generators
    • Ignitions & Electrical
    • Inboard and Sterndrives
    • Outboard Motors
      • Evinrude Outboard Motors
      • Honda Outboard Motors
      • Mercury Outboard Motors
      • Nissan Outboard Motors
      • Suzuki Outboards Motors
      • Tohatsu Outboard Prices
      • Yamaha Outboard Engines For Sale
    • Transmission and Drivetrain
      • Automatic Transmissions
      • Manual Transmissions
      • Engine Drives
    • Welding Machine
      • MIG Welders
      • Stick Welders For Sale
      • TIG Welders For Sale
  • OUR SERVICES
    • Boats and Outboards Services
    • Engine Services
    • Parts Request
    • Service Appointment
  • Customer Corner
    • Company
    • FAQ
    • Newsletter Signup
    • Our Videos
    • News & Events
  • Finance
    • Financial Department
    • Get Financed
  • Warranty
  • Dealer Info
    • Careers
    • Contact us
    • Customer Reviews
Login / Register
Search
Wishlist
0 items $0.00
Menu
0 items $0.00
Click to enlarge
Home Chassis & Suspension Gasser Straight Axle, Chevy Spindle and Brake Kits, 56-1/2 Hub-to-Hub
G-Comp Unser Edition 1967-69 Camaro Front Suspension Kit
G-Comp Unser Edition 1967-69 Camaro Front Suspension Kit $4,000.00
Back to products
Global West Suspension Coilover Kits COMNR-6265D
Global West Suspension Coilover Kits COMNR-6265D $2,044.94

Gasser Straight Axle, Chevy Spindle and Brake Kits, 56-1/2 Hub-to-Hub

$800.00

Universal Fit, Straight Axle Front Suspension Type
  • Create that vintage drag car look with this Gasser axle kit featuring a 56-1/2″ hub to hub measurement
  • Professionally engineered and built 48″ axle with 0.250″ wall, 2.00″ O.D. steel tubing
  • Brand new forged ’49-’54 Chevy car spindles offer more strength over stock cast spindles
  • Ford 5 on 4-1/2″ bolt pattern features an 11″ vented rotor with 1/2″-20 wheel studs, Chevy 5 on 4-3/4″ is a 9-1/4″ vented rotor with 7/16″-20 studs, Wilwood brake kit offers both wheel bolt patterns
  • Use of Common ’78-’88 GM metric calipers with a 2-1/2″ bore for proven braking performance
Compare
Add to wishlist
Category: Chassis & Suspension
Share:
  • Description
  • Shipping & Delivery
Description

Product Summary

Universal Fit, Straight Axle Front Suspension Type
  • Create that vintage drag car look with this Gasser axle kit featuring a 56-1/2″ hub to hub measurement
  • Professionally engineered and built 48″ axle with 0.250″ wall, 2.00″ O.D. steel tubing
  • Brand new forged ’49-’54 Chevy car spindles offer more strength over stock cast spindles
  • Ford 5 on 4-1/2″ bolt pattern features an 11″ vented rotor with 1/2″-20 wheel studs, Chevy 5 on 4-3/4″ is a 9-1/4″ vented rotor with 7/16″-20 studs, Wilwood brake kit offers both wheel bolt patterns
  • Use of Common ’78-’88 GM metric calipers with a 2-1/2″ bore for proven braking performance

Installation Tips !

  1. If using steel wheels with Wilwood kit, you will also need to purchase (2) steel shims part 835-3007500. These shims will prevent steel wheels from galling the aluminum hub.
  2. Rubber brake hoses generally cannot be adapted to Wilwood calipers. The caliper inlet fitting is a 1/8-27 NPT. The preferred method is to use steel adapter fittings at the caliper, either straight, 45 or 90 degree and enough steel braided line to allow for full suspension travel and turning radius, lock to lock.

Details

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.

  • 48 inch

Note: Wilwood brakes increase hub-to-hub width by 1/2″.

-Wilwood brake kit will not work with ET gasser wheel 91058673.  The Wilwood kit only comes with 1/2″ studs for both the 5×4.5 and 5×4.75 bolt pattern.  If you would like to use the 5×4.75 pattern, you will need to source a set of screw in 7/16″ wheel studs.

Item Details

49-54 Chevy Spindles, Specify bolt pattern,
48″ Wide axle – 56-1/2″ hub to hub.

  • Not For Off-Road Race Use

Charts

  • 910-3948 Instructions (PDF)

  • 5 x 4-1/2 & 4-3/4 Brake Kit Instructions (PDF)

  • Wilwood Brake Instructions (PDF)

  • Gasser Info (PDF)

Specs

Gasser Kit w/ “Chevy” Spindles

  • 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

  • Front Suspension Kits Instruction Sheet (9103948)(PDF)

  • Front Suspension Kits Instruction Sheet (9103948)(PDF)

  • Front Suspension Kits Instruction Sheet (9103948)(PDF)

  • Front Suspension Kits Guide/Document (9103948)(PDF)

  • Leaf Springs Guide/Document (91033029)(JPG)

  • Spindles Guide/Document (91032100)(JPG)

  • Steering Arms Guide/Document (91632026)(JPG)

  • Steering Arms Guide/Document (91632026)(JPG)

  • Steering Drag Links Guide/Document (91631)(JPG)

  • Brake Calipers Instruction Sheet (8351206816)(PDF)

  • Disc Brake Pads Guide/Document (8351508850K)(PDF)

  • Spindle Hardware Guide/Document (83537010090)(PDF)

  • Disc Brake Pads Guide/Document (9193381)(JPG)

KEY SPECS

MFG. Part # 8351508850K
Brand Speedway Motors
Front Suspension Type Straight Axle
Suspension Height Adjustment Stock Height
Control Arm Style Not Included
Shock Type Not Included
Spring Type Leaf Spring
Finish Natural
Bolt Pattern Select Brake Kit to see
Rotor Diameter Select Brake Kit to see
Spindle Style Chevy/GM Custom
Dropped Spindles No
Dropped Axle No
Dropped Control Arms No
Front Leaf Spring Style Semi-Elliptical Gasser
Spindles Included Yes
Steering Included Yes
Welding Required Yes
Shipping & Delivery
wd-ship-1
wd-ship-2

Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

Related products

1923 Plain Budget T-Bucket Frame Assembly, Chevy

Chassis & Suspension
$1,875.00
Add to cart
Compare
Quick view
Add to wishlist

1949-54 Chevy Car/53-62 Corvette Front Disc Brake Conversion Kit

Chassis & Suspension
$220.00
Add to cart
Compare
Quick view
Add to wishlist

1955-57 Chevy Tubular Control Arms, Coilovers and Sway Bar Kit

Chassis & Suspension
$1,125.00
Add to cart
Compare
Quick view
Add to wishlist

1964-66 Ford Mustang 9 Inch Rear Axle Kit w/Disc E-Brake, 3.50:1

Chassis & Suspension
$1,600.00
Add to cart
Compare
Quick view
Add to wishlist

1964-67 GM A Body Chevelle Tubular Control Arms, C/O & Sway Bar

Chassis & Suspension
$1,100.00
Add to cart
Compare
Quick view
Add to wishlist

1964-70 Mustang Crossmember, Mustang II Front Suspension Upgrade

Chassis & Suspension
$155.00
Add to cart
Compare
Quick view
Add to wishlist

1982-04 S10 & G-Body Tubular Upper Control Arms Kit, Powdercoated

Chassis & Suspension
$180.00
Add to cart
Compare
Quick view
Add to wishlist

46 In Gasser Ford Axle/Spindle/Brake Kit 5 on 4-1/2 Mopar Bolt Pattern

Chassis & Suspension
$750.00
Add to cart
Compare
Quick view
Add to wishlist

    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

    • 1204 E Yorba Linda Blvd, Placentia, CA 92870, USA
    • Phone: +1 (714) 694-3374
    • E-mail: sales@xfactorsmotorsports.com
    Recent Posts
    • Commercial Mower Engine Maintenance Checklist
      Commercial Mower Engine Maintenance Checklist | Pro Landscaper Guide
      October 27, 2025 No Comments
    • Godzilla Platform
      Big-Inch Pushrod V8s: Why the Ford Godzilla Platform is a Game Changer
      October 27, 2025 No Comments
    Our stores
    • New York
    • London SF
    • Edinburgh
    • Los Angeles
    • Chicago
    • Las Vegas
    USEFUL LINKS
    • Privacy Policy
    • Returns
    • Terms & Conditions
    • Contact Us
    • Latest News
    • Shipping Policy
    Footer Menu
    • Financial Department
    • Get Financed
    • Parts Request
    • Service Appointment
    • Warranty
    • Careers
    X Factors Motorsports. 2025 Power By Partners Title SC LLC..
    payments
    • inventory
      • Brake Systems
      • Chassis & Suspension
        • Chassis Components
        • Steering Components
        • Suspension Components
      • Engines
        • Car Engine
        • Crate Engines
          • Short Block Engines
        • Engine and Transmission Combos
        • Horizontal Engines
        • Vertical Shaft Engine For Sale
      • Exhaust
      • Generators
        • Commercial Generators
        • Generator Transfer Switch
        • Standby Generators
        • Generators, Marine Generators
        • Marine Generators
      • Ignitions & Electrical
      • Inboard and Sterndrives
      • Outboard Motors
        • Evinrude Outboard Motors
        • Honda Outboard Motors
        • Mercury Outboard Motors
        • Nissan Outboard Motors
        • Suzuki Outboards Motors
        • Tohatsu Outboard Prices
        • Yamaha Outboard Engines For Sale
      • Transmission and Drivetrain
        • Automatic Transmissions
        • Manual Transmissions
        • Engine Drives
      • Welding Machine
        • MIG Welders
        • Stick Welders For Sale
        • TIG Welders For Sale
    • OUR SERVICES
      • Boats and Outboards Services
      • Engine Services
      • Parts Request
      • Service Appointment
    • Customer Corner
      • Company
      • FAQ
      • Newsletter Signup
      • Our Videos
      • News & Events
    • Finance
      • Financial Department
      • Get Financed
    • Warranty
    • Dealer Info
      • Careers
      • Contact us
      • Customer Reviews
    • Wishlist
    • Compare
    • Login / Register
    Shopping cart
    Close
    Sign in
    Close

    Lost your password?

    No account yet?

    Create an Account
    Start typing to see products you are looking for.
    Shop
    Wishlist
    0 items Cart
    My account