Product Summary

Universal Fit, Straight Axle Front Suspension Type

  • Equip your street rod with this custom suspension kit and get that old school nostalgic look
  • 1 piece forged steel axle features increased strength over cast versions
  • Accepts stock '37-'48 Ford spindles or Speedway Ford-style reproduction spindles
  • Reverse eye spring allows for a low stance
  • Steering and brake kits are available to complete your front end

Comes as a Kit

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Key Specs

MFG. Part #91602080
Front Suspension TypeStraight Axle
Suspension Height Adjustment4 Inch Lowered
Control Arm StyleRadius Rod
Shock TypeNot Included
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Need To Know

Quick and Easy Returns

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Speedway Motors 91602080 Details

Equip your street rod with a custom suspension sure to achieve style and performance all without breaking the bank.  These front straight axle suspension kits from Speedway Motors will get your ride rolling in no time.

Kit Includes:

  • (1) Forged I-Beam Dropped Front Axle
  • (1) Super Glide Reverse Eye Front Spring, 46 Inch
  • (1) Pair of Split Wishbone Style Radius Rods, Drilled
  • (1) Pair of Forged Leaf Spring Perch Mounts
  • (1) Pair of 1-3/4" Nylon Spring Shackles
  • (1) Pair of Forged Steel Shock Mounts
  • (2) Plain Steel Jam Nuts, 11/16"-18 RH
  • (2) Outer Tie Rod Ends, 11/16" 18 RH
  • (1) Pair of Radius Rod Frame Mounting Brackets

Drilled I-Beam Front Axle

These forged steel drop axles are perfect for your next street rod project!  Our dropped front axle sizes keep the wheels inside the fenders.  Keeping the wheels tucked in the fenders allows for a lower ride height with adequate tire clearance.  All of our I-beam axles feature a 4 inch drop and are designed as a replacement Ford front axle.  With a versatile design, these dropped axles also allow you to use your stock 1937-48 Ford spindles or our Ford I-beam reproduction spindles.  47" wide from king pin centers, our street rod axles are sized according to original mounting specs, making a stress free conversion for your classic Ford styled front end.

  • 1-piece forged steel drilled design
  • 4" drop
  • 47" wide (king pin centers)
  • Accepts stock '37-'48 Ford spindles or Speedway Ford-style reproduction spindles
  • 34" spring perch centers
  • Use with 29" cross spring
  • 2-1/4" tall wishbone boss

Note: In order to use this axle with 2 inch wishbones, you will need to machine the inside of your wishbones and/or the axle for them to work together. The spring perch bosses on stock Model A wishbones are 2-1/4 inches, as are '37-and-later Fords, but '32-36 Ford wishbones come in at 2 inches.

Super Glide Front Leaf Spring

Achieve a smoother, more comfortable ride with Speedway Super Glide™ springs for your 1928-1934 Ford front end! The ends of the spring leaves of a Super Glide™ spring have a unique nylon button which works as a dry lubricant to significantly reduce leaf-to-leaf friction. This allows the spring to move more easily, thereby giving a softer, quieter ride.

This spring features reverse eyes for a 1" drop compared to standard eyes.  29" Eye-to-Eye

Split Wishbone Radius Rods

It doesn't get much more traditional than running a set of split wishbones. These split bones are all new with forged front yokes just like Henry built them and fit a 2-1/4" axle boss. 

  • 40-3/4" from the front perch bolt centerline to the end of the 11/16"-18 threaded rear bung
  • 1/2"-20 threaded roid to allow a spring behind perch, shock mount or other hardware to be used
  • Material thickness is 12 GA (0.1046")
  • Includes lightening holes (holes not boxed)

Leaf Spring Perch Mounts

Works with 1928-34 Ford front ends with 1-3/4" wide cross spring. Extra long for lower shock mounts. Includes nylock nut.

  • 2-1/2" from top of threads to mid shoulder
  • 2-7/8" from top of threads to top of shoulder
  • Thread length is 1-7/8"
  • Distance from the top of the shoulder to the bottom of the threads is 4-3/4"

1-3/4" Nylon Spring Shackles

Fits front or rear springs. All measurements are width of spring. All nylon bushed shackles are 1-1/2" shackle bolt center to shackle bolt center.

Forged Steel Lower Shock Mounts

New, FORGED steel lower shock mount design is stronger than the competition and incorporates a key slot to stop the rotation other brands suffer from. Machining of matching key slot into perch bolts may be required.  Stud for the shock eye mount is 5/8".

Plain Steel Jam Nuts

Plain steel fine thread jam nuts for use with rod ends, heim joints, and clevis.

  • 11/16"-18
  • RH Female
  • Clear Zinc

Outer Tie Rod Ends

Replace those sloppy worn out tie rods with our new replacements. Original equipment on 1948-1964 Ford half-ton pickups, but these tie rod ends can be used for multiple applications other than Ford trucks. Not for use with flat steering arms. Use only with Ford type steering arms with a tapered hole. Not normally used with Chevy spindles.

  • RH Male
  • 11/16"-18
  • 7 degree taper
  • 1.75" stud length
  • 2.42" shank length
  • 1" from center of threaded shaft to the bottom of the taper
  • Includes boot, castle nut, and cotter pin

Radius Rod Frame Mounting Brackets

Weld these brackets to the underside of your low-ridin Model T thru 1934 Ford frame rails for a simple, strong place to attach radius rods using 11/16” Ford style tie rod ends. Plain steel.

  • 4-3/8 Inch Tall
  • 7 Degree Taper 

Charts

Speedway Motors 91602080 Specifications

KEY SPECS
MFG. Part #91602080
BrandSpeedway Motors
Front Suspension TypeStraight Axle
Suspension Height Adjustment4 Inch Lowered
Control Arm StyleRadius Rod
Shock TypeNot Included
Spring TypeLeaf Spring
FinishNatural
Rotor DiameterNot Included
Spindle StyleFord Custom
Dropped SpindlesNo
Dropped AxleYes
Dropped Control ArmsNo
Front Leaf Spring StyleSpring-Over Axle
Spindles IncludedNo
Brakes IncludedNo
Steering IncludedNo
Welding RequiredYes
GENERAL
Sold in QuantityKit
Material TypeSteel
Mounting Hardware IncludedYes
Straight Axle StyleDrilled I-Beam

Ratings & Reviews

5

10 Reviews

Overall Assessment

Customers consistently praised our product for its quality and design, noting that it matches the advertised descriptions accurately. Customers found the product easy to install, with special mention of the effortless installation of the kingpins. The drilled axle and radius rod features received positive feedback for their aesthetic appeal. Despite slight misalignment issues in the shackles due to the axle's lean back, customers reported no noticeable effect during road tests. Several customers highly recommend the product, noting that it significantly simplifies building projects. Many professionally built models, such as the 29-ford-A, utilized parts primarily from our product range, reflecting the product's reliability and user satisfaction.

5

10 reviews

5

10

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well made

5.0

8 months ago

33

ohio

Verified

all is what it states

Would Recommend

Excellent product

5.0

8 months ago

John

Palmer alaska

Verified

Was in great condition works awesome would buy again if I needed

Would Recommend

I am in the process of buying another kit now

5.0

a year ago

Dirty30

Lawrenceburg ky

Verified

Absolutely love this front end kit, very nice an built very well!!! Honestly I was blown away how nice it is an the fast amazing service. Speedway is the best in the business!

Would Recommend

yes

5.0

2 years ago

Robert

Hamshire,Tx

Verified

always fit,,good quality material

Would Recommend

Yes I will order more product in the near future.

5.0

4 years ago

Jay

RI

Verified

Very satisfied at this point.

Would Recommend

classic

5.0

5 years ago

Rocco

ballston lake ny

Verified

product just as advertised

Would Recommend

Great Kit

5.0

5 years ago

Brian P.

Amarillo, TX

Verified

Ordered back in November, it was on backorder until end of December but I was kept informed all the way. Product shipped just after the first of the year and arrived quickly and in great condition. So far the kit looks fantastic, kingpins installed easily and I love the look of the drilled axle and radius rods.

Would Recommend

Works great

5.0

5 years ago

Josh

St Rose LA

Verified

When it was installed and sitting on tires I noticed the shackles had a slide twist in them because leaf spring was straight and the axle has to be leaned back to 5-7 degrees but no noticeable problems once I road test so I guess it would be good as is

Would Recommend

Awesome set up, don't forget spring clamps.

5.0

6 years ago

Scott

Denver, CO

Verified

I love the looks of this set up. Evening fits great, overall I would definitely recommend.

Would Recommend

29-ford-A..

5.0

7 years ago

keith

modesto..CA.

Verified

i have built 3 model - A'S in the last few years. and all the suspension front and rear have came from Speedway. makes my job E Z. have never bin disappointed ..of all 3 cars 80% of all the parts are from speedway and i have never had to send one part back for any reason...extremely satisfied..

Showing 10 of 10 reviews

Questions & Answers

7 Questions8 Answers

Is there a spring behind version of this kit? I see that the Split Wishbone Style Radius Rods w/ Holes, 91645128, state "1/2"-20 threaded roid to allow a spring behind perch, shock mount or other hardware to be used" in the description but there are not any good detail photos. Do you offer this as a custom kit?

by Patrick

7 years ago

1 answer

Hi I was wondering if this kit or any of your kits work with a 40 Ford coupe, thank you

by Kody

7 years ago

1 answer

What is recommended shock length and upper shock mounts for this set set up? Going on a steel body '30 Ford coupe with a big block ford, about a 700 lbs motor. Thanks.

by CMFP460

7 years ago

1 answer

Can you recommend spindles and brakes for this kit?

by Dan

7 years ago

1 answer

Hello I'm looking for a brake and steering kit that will work with this axle . The description says 47 " axle and kits i see are for either 48 " or 46 " axle . I would like the ford 4.5 " bolt pattern

by tom

7 years ago

1 answer

Is the caster adjustable? If not what is the caster set at?

by Rick

7 years ago

1 answer

Does this kit come in Chrome?

by Eldorado!

8 years ago

2 answers

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