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Speedway Forged 4 Inch Drop I-Beam Front Axle, Plain

Specs
Material Type:
Steel
Sold in Quantity:
Each
Finish:
Natural
Spindle Type:
Ford
Drilled:
No
Drop:
4.00
Perch Centers:
34.00
King Pin Centers:
47.00
Speedway Forged 4 Inch Drop I-Beam Front Axle, Plain

Click image to enlarge

Details

Reviews (5)

Q & A (7)

What's in the Box

Info

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 design
  • Axle forging is ground smooth and bead blasted for a superior finish
  • 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.

Front Axle/Suspension Tech Tips (GIF)

Customer Reviews

Rated 4.2 out of 5 by 5 reviewers.
RATING BREAKDOWN
5 reviews
5 Stars
3
4 Stars
0
3 Stars
2
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Hammerfistofdoom
Verified Purchaser
Pennsylvania

Great product

November 09, 2016
Great product.
Yes, I recommend this product.
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Dutster
Verified Purchaser
Verified Reviewer
West Salem, Wi

Heavy weight on construction

September 04, 2015
Axle will be used in a 1929 ford Highboy with hot rodded model A 4 banger.
Yes, I recommend this product.
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demano
Verified Purchaser
prescott, wi

quality product

October 27, 2014
very nice quality product, will put me in the weeds
Yes, I recommend this product.
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jim33
CT

Doesn't appear to be forged.

December 06, 2013
Although this axle is "very stout" it is lacking the telltale signs of a true forging. The thick parting line down the center (usually ground down but still prevalent) leading me to believe this is a casting not a true forging. Even a casting would have a parting line (though a lot thinner) this is lacking a parting line altogether leading me to wonder just how this axle was made. Again this axle is very heavy duty and should work fine for many applications but I wanted to see some evidence of a true forging. This is the only reason I gave it 3 stars and not 5. Would I buy it again? Yes I would. Speedway has never let me down yet.
Pros:
  • very stout
Cons:
  • no evidence of a true forging
Yes, I recommend this product.
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Merchant Response:

Jim33, thank you for your feedback. We can ensure you that our axles are indeed forged. During the manufacturing process, the parting lines are ground down, and then the product is bead blasted to clean them up. This virtually removes all evidence of the forging parting lines. We cannot leave the big, unsightly forging parting lines on these parts because some of them are also chrome plated, and the smooth finish allows for better coverage and an overall more attractive appearance.
jim33
CT

Doesn't appear to be forged.

December 06, 2013
Although this axle is "very stout" it is lacking the telltale signs of a true forging. The thick parting line down the center (usually ground down but still prevalent) leading me to believe this is a casting not a true forging. Even a casting would have a parting line (though a lot thinner) this is lacking a parting line altogether leading me to wonder just how this axle was made. Again this axle is very heavy duty and should work fine for many applications but I wanted to see some evidence of a true forging. This is the only reason I gave it 3 stars and not 5. Would I buy it again? Yes I would. Speedway has never let me down yet.
Pros:
  • very stout
Cons:
  • no evidence of a true forging
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

Merchant Response:

Jim33, thank you for your feedback. We can ensure you that our axles are indeed forged. During the manufacturing process, the parting lines are ground down, and then the product is bead blasted to clean them up. This virtually removes all evidence of the forging parting lines. We cannot leave the big, unsightly forging parting lines on these parts because some of them are also chrome plated, and the smooth finish allows for better coverage and an overall more attractive appearance.
Page 1 of 1

Product Q&A

7 questions : 7 answers

1 answers

Can I use this axle on my T ? I want to use a beam axle and wish bones on my T. Is this the ideal axle? I want to use a reversed eye spring. What spring and shackles will I need?

Ben23
Lost in space.
March 22, 2015

Can I use this axle on my T ? I want to use a beam axle and wish bones on my T. Is this the ideal axle? I want to use a reversed eye spring. What spring and shackles will I need?

Answers

March 23, 2015
EricM
This axle will work for the wishbones and spring behind and spring number 71533027 which is designed for the axle and wishbones. You will also need the 5 degree spring pivots number 91633001 to help with shackle and spring bind. This is the style used on our Tribute T.
1 answers

Will this work with unsplit wishbones These are a direct fit as you say but at 34" it's narrower than the factory 37

Whitetrashfabrications
Florida, USA
January 30, 2015

Will this work with unsplit wishbones These are a direct fit as you say but at 34" it's narrower than the factory 37

Answers

January 30, 2015
Tech
I'm sorry to say that no, this would not work with an unsplit wishbone. This needs to be used with split bones, hairpin radius rods or a 4 bar system.
1 answers

Will this item take the brake/steering kit 9133902 that I already have, im wanting to dump the cast i-beam for a forge unit, thanks

KiwiPete
April 15, 2014

Will this item take the brake/steering kit 9133902 that I already have, im wanting to dump the cast i-beam for a forge unit, thanks

Answers

April 16, 2014
EricM
Yes your steering and brake kit 9133902 will work with this axle other than the tie rod tube. You will need to cut 1" off of the tie rod tube or order a shorter one such as 91631-46 in order to fit this 47" axle correctly.
1 answers

Dimensionally is this the same axle as your chromed forged drilled axle and will stock 37 ford bone fit this axle? I purchased one of your drilled chrome forged axles last year and that axle is a beast! I love it but now I need one undrilled, plain, and I'm running stock 37 ford split wishbones.

jim33
CT
November 22, 2013

Dimensionally is this the same axle as your chromed forged drilled axle and will stock 37 ford bone fit this axle? I purchased one of your drilled chrome forged axles last year and that axle is a beast! I love it but now I need one undrilled, plain, and I'm running stock 37 ford split wishbones.

Answers

November 25, 2013
EricM
The boss for the wishbone on this axle is 2 ¼” tall and in some cases the Ford wishbones were for a 2” tall boss. In order to use this axle with the 2" wishbones you will need to machine the inside of your wishbones and/or the axle for them to work together. Sorry we do not offer these axles with shorter 2" perch bolt boss if that is what your wishbones measure.
1 answers

will a stock model a spring and perches fit with this unit?

devotion
November 30, 2012

will a stock model a spring and perches fit with this unit?

Answers

December 03, 2012
Jason
This is a cross between a 46 and a 48” axle and uses a 29” spring. Perch centers are 34 3/8” and the perch bolt holes are 11/16” with the perch leaning inward approximately 1” for shackle attachment.
1 answers

Will hairpins work with this axle if so what are the parts needed. If not do you have a forged axle that is compatible with both a model A and hairpins

Drew
July 08, 2016

Will hairpins work with this axle if so what are the parts needed. If not do you have a forged axle that is compatible with both a model A and hairpins

Answers

July 11, 2016
John
Expert
To get all the components for a hairpin axle kit we can use kit number 91639519 and substitute in the Speedway forged axle number 91035140 if so desired. If opting for a steering and brake kit also like number 9133948 be sure and get a tie rod 1" shorter for correct fit.
1 answers

I want to put a 4 inch drop I-beam front axle on my t-bucket. do you make it for a chevy all I see is for a ford

no go joe
goodyear az
August 13, 2016

I want to put a 4 inch drop I-beam front axle on my t-bucket. do you make it for a chevy all I see is for a ford

Answers

August 16, 2016
Craig
Expert
We apologize, the I beam axles are only going to be for the Ford spindles. If you want to use Chevy spindles you will have to go with a tube axle.
Page 1 of 1

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