
HD Gasser Straight Axle Chevy Spindle/Brake Kit 56-1/2 Hub-to-Hub
Universal Fit, Straight Axle Front Suspension Type, Stock Height Suspension Height Adjustment



- Ideal for serious drag cars and heavier vehicle applications like 1955+ trucks and 1955-63 Chevy’s
- The 28% improvement in strength will give you the added insurance that when the light turns green you can hang your hoops without worry
- Standard brake kits use new rotors and GM metric style calipers
- Leaf springs measure 31-1/4" long x 1-3/4" wide and have a 400 lbs./inch spring rate
- Forged steel spindles are modeled after the 1949-54 Chevy passenger car spindle
Details
Info
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.
- 48 Inch
Note: Wilwood brakes increase hub-to-hub width by 1".
- Recommended for off-road / drag race applications
910-4348 Instructions (PDF)
5 x 4-1/2 & 4-3/4 Brake Kit Instructions (PDF)
Wilwood Brake Instructions (PDF)
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.
Notes
- 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.
- 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.
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
What's In The Kit
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Reviews
Q & A
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Speedway Motors and Classic Trucks joined teams to build a 1952 Chevy truck for the newest Week to Wicked build. Jason and Tom talk about the Speedway Motors Mustang II front suspension kit used on the build.