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Front End Assembly for Model A Frame, I-Beam Axle, Plain
Front End Assembly for Model A Frame, I-Beam Axle, Plain

Front End Assembly for Model A Frame, I-Beam Axle, Plain

28-31 Ford Model A, Straight Axle Front Suspension Type, Radius Rod Control Arm Style, Natural

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Front End Assembly for Model A Frame, I-Beam Axle, Plain
Front End Assembly for Model A Frame, I-Beam Axle, Plain
Front End Assembly for Model A Frame, I-Beam Axle, Plain
Front End Assembly for Model A Frame, I-Beam Axle, Plain
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Part # 91639510
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What's In The Kit
Videos & Articles
  • Kit includes a 48" axle, 27" radius rods, leaf spring and shackles, lower shock mounts and hardware
  • Axle kit designed to work with frame #916-57045
  • Features 48" kingpin-to-kingpin I-beam axle, 4" dropped
  • These precision made 4" dropped I-Beam axles accept 1928-36 Ford spindles and have 2-1/4" axle bosses
  • Dropped I-beam axles feature a one-piece design cast from high-strength 65-45-12 annealed ductile iron

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Front Suspension Type:
Straight Axle
Control Arm Style:
Radius Rod
Shock Type:
Not Included
Spring Type:
Leaf Spring
MFG. Part #:


These front suspension packages make it easier to begin transforming your Model A frame into a rolling chassis. Kits include a 48" I-beam axle, radius rods, leaf spring and shackles. Kit works well with the SM300 Pro Shocks (shocks not included).

Axle kit designed to work with frame #916-57045.

All I-beam axles use the Ford spindle. We have brake kits with both Chevy and Ford bolt patterns available for the Ford spindle.

The brake kit you select will determine the final track width (hub to hub). The brake kits intended for this application (the Wilwood or our 702-4475 Metric brake kit) produce a final track width of about 56-1/4". Some of the other brake kits (like the 916-31903), which are not recommended for this application, would increase the track width by over an inch.

Front Axle/Suspension Tech Tips (GIF) 


Installation Guide (PDF)

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Plain 1928-36 Ford 4 Inch Dropped I-Beam Axle, 48 Inches
    Qty x 1
  • Super Glide® Front Spring, 48 Inch Axle, Reverse Eye, Plain
    Qty x 1
  • Speedway Front Solid Axle Leaf Spring Perch, Plain Forged Steel
    Qty x 1
  • Front Hairpin Radius Rods, 27 Inch, Plain Steel
    Qty x 1
  • Speedway Bolt-On Hairpin Radius Rod Axle Brackets
    Qty x 1
  • Steel Clevis, 5/8-18 RH Thread, 3/8 Inch Slot, Zinc Plated
    Qty x 4
  • Standard Steel Heim Joint Rod Ends, 5/8-18 RH Male
    Qty x 2
  • Steel Jam Nuts, 5/8 Inch-18 Right Hand NF Fine Thread, Pack/6
    Qty x 1
  • Transverse Leaf Spring Shackles w/ Nylon Bushings, Zinc Finish
    Qty x 1
  • Speedway Forged Steel Lower Shock Mounts for Front Solid Axle, Zinc
    Qty x 1
  • Clevis Hardware
    Qty x 1
  • Radius Rod Rear Bolt Kit
    Qty x 1
  • Plain Model T thru 1934 U-Bolts
    Qty x 1
  • U-Bolt Clamping Plate Set
    Qty x 1

More Like This


Q & A

Videos & Articles
  • Get a good foundation on racing shocks and their different functions. Learn about the fundamentals and the pros and cons between various types of shocks available.
  • Learn about the steps and tools necessary for a smooth chassis assembly for your sprint car.
  • Learn how Derek Turner's '55 Chevy gets completely overhauled with brand new chassis and suspension components along with a new fuel system and wiring.

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