9 Inch Ford Cut-to-Fit Axle Kit, Torino Big Bearing, 31 Spline

#9107997

9 Inch Ford Cut-to-Fit Axle Kit, Torino Big Bearing, 31 Spline

Name: 9 Inch Ford Cut-to-Fit Axle Kit, Torino Big Bearing, 31 Spline
Brand: Speedway Motors
SKU: 9107997
Price: 372.99 USD
Availability: InStock
Rating: 5 (14 reviews)

14 Reviews

4 Questions

Allows you to build your own custom width rear end easily
Includes two 31 spline cut to fit axles, long axle length 33" and short axle length 29.51"
Premium steel construction for consistent performance and reliability

Spline:

31-Spline

28-Spline

$372.99

/pair

In Stock

$377.98

Save $4.99

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Product Summary

Ford 9 Inch, Semi-Floating Axle Type, 31 Spline Count

Allows you to build your own custom width rear end easily
Includes two 31 spline cut to fit axles, long axle length 33" and short axle length 29.51"
Premium steel construction for consistent performance and reliability
Axle has the new style big bearing Ford (Torino style) bearing size
Features three bolt patterns 5 on 4-1/2", 5 on 4-3/4", and 5 on 5"

Comes as a Kit

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Key Specs

MFG. Part #	9107997
Brand	Speedway Motors
Axle Type	Semi-Floating
Spline Count	31
Material Type	Steel

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Need To Know

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Installation Details

Installation Tips

Installation Notes:

Disc brake kits may require increasing the i/d of the center hole in the rotor to match the o/d register or hub pilot on the axle flange, or reducing the diameter of the register or hub pilot on the axle to fit properly to the i/d of the rotor.

When installing new axles in rearends with posi traction differentials, be sure to install the driver's side axle first to keep the splines properly aligned. Failure to do so may move the two splined gears out of alignment, and it may be difficult to install the driver's side axle properly if the passenger side axle is already installed.

If installation of passenger side axle is done first it may require two people when installing the driver's side axle, with both parties rotating reach axle until splines are in line and the driver's side axle fully sides into the housing.

When cutting axles to desired lengths, it is recommended that the following procedures are performed:

Normal steel cutting machinery (cold saw, band saw, chop saw, etc.)
Using a sleeve around the axle such as a small piece of PVC tubing - this allows:
- The axle to be spun in place while being cut
- A perimeter cut around the outer diameter assisting in keeping the cut square
- Avoiding the build-up of too much heat by doing a straight cut (like a knife though a stick of butter)

To ensure you get the most out of your new 9 Inch components, it is recommended that you perform a proper break-in process:

Use a name brand mineral-based gear oil, preferably 85w140 (Extremely high quality synthetic oils may be used once break-in process has been successfully performed)
Place vehicle on jack stands and let the rearend spin while the vehicle idles - run transmission in both forward and reverse periodically throughout the process
Continue to run the rearend until the pinion gets hot (place hand on bottom of the differential housing to verify this)
Proper break-in allows:
- The ability to install new axles and hit the track the same day without worry
- Extended life for rearend components
- Keeps the quality and life of your gear oil

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Speedway Motors 9107997 Details

These steel axle shafts have a natural finish and are sold as a pair. They are perfect for small shops and will allow you to build your own custom width rear end easily. Axle length is measured from the flange to the end of the splines.

Circle track / off road application 5/8" thread wheel studs sold separately 910-05957 and 910-05958
Street application 1/2" thread wheel studs sold separately 910-05959 and 545-46190
9 Inch Ford
31 spline axles
Long & Short axles included
Axle has the new style big bearing ends on it
Bearing measures 3.150"
Bearings already pressed in
2-1/2" Offset
Drilled for 5 on 4-1/2", 5 on 4-3/4", and 5 on 5" wheel bolt patterns using 0.685" knurl dia.
PA20 set bearing
AR375 Torino retainer
Axle length is from the flange to the end of the splines
Axles have 3 bolt patterns in them: 5 on 4-1/2", 5 on 4-3/4", and 5 on 5"
The hub pilot (center of the axle flange) measures 3.055"
The O.D. of the axle flange measures 5.93"

For more information on determining the proper axle length and the Ford 9 Inch, be sure to check out our tech articles; How to Measure and ID Differential Housings and The Rearend Debate: Ford vs. Chevy.

Long:

33" length with 9-1/4" of spline

Short:

29.51" length with 10" of spline

Speedway Motors 9107997 Specifications

KEY SPECS
MFG. Part #	9107997
Brand	Speedway Motors
Axle Type	Semi-Floating
Spline Count	31
Material Type	Steel

GENERAL
Position	Rear
Bolt Pattern	Multi: 5 on 5" \| 4.75" \| 4.50"
Housing End Style	Big Ford/New Style (Torino)
Wheel Studs Included	No
Finish	Natural
Sold in Quantity	Pair
Offset	2.50"
Cut to Fit	Yes

Ratings & Reviews

14 Reviews

Overall Assessment

The product has been widely praised for its quality and practicality, particularly for customization purposes. Customers appreciate the ability to narrow the axles themselves, suggesting thorough measurement and use of a jig. The product has proven effectively in various projects, like a 1934 Chrysler and a Speedway 70 C10 housing. Additionally, the multi-bolt pattern and strength of the axles have been commended. It is viewed as a reliable choice for hot rodding and swapping in a 9 inch rear axle housing, making it a preferred choice over competitors for custom automobile projects. Despite some recommendations for minor size adjustments to fit specific models, customer feedback indicates a high level of satisfaction.

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14 reviews

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Yes

5.0

25 days ago

GWG

Evansville IN

Verified

Fit great quality product

Would Recommend

Speedway

5.0

a year ago

Shaun

Ukiah ca

Verified

One of the best customer service departments I've ever called !

Would Recommend

Yes, I would buy this product again.

5.0

2 years ago

Chris Atkinson

Xenia, Ohio

Verified

Great product, 100% satisfied.

Would Recommend

I would defiantly buy from Speedway again

5.0

2 years ago

Buzz

Atlanta, Georgia

Verified

Good Product

Would Recommend

perfect axles for narrowing yourself

5.0

3 years ago

RICKYSRUSTYRELICS

WICHITA KS

Verified

narrow it yourself ,measure twice cut once,dont forget the jig and plate!

Would Recommend

Yes

5.0

3 years ago

Joluapolo

Guayaquil, Ecuador

Verified

Perfect

Would Recommend

I would buy again

5.0

4 years ago

Curt

Santa Rosa Ca

Verified

Installed in a 1934 Chrysler

Good solid product!

5.0

5 years ago

Hank F

Vero Beach FL

Verified

Making your own length axles is a good option to have!!

Would Recommend

I would buy this again for my next project

5.0

5 years ago

Tony

Buffalo Minnesota

Verified

Great product for customizing your 9 inch rear axle housing

Would Recommend

have not used yet.

5.0

6 years ago

Larry

Fl.

Verified

using in my gasser

Would Recommend

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Questions & Answers

4 Questions • 4 Answers

Sort Questions

9 Inch Ford Cut-to-Fit Axle Kit, Big Ford/New Style, 31 Spline #9107997 What disc brake conversion kit (with E brake) works with these axles? Using the 4.5 inch stud holes in these axles.

by Slugger

• 2 years ago

1 answer

View Answer

I have an big ford old style housing. If i put the correct bearings on them. Will they work in my housing?

by Daylon

• 2 years ago

1 answer

View Answer

what kind of horsepower are these rated for?

by chris

• 6 years ago

1 answer

View Answer

how long are splines on axles

by eddie

• 6 years ago

1 answer

View Answer

4 of 4 questions shown

Fitment

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