Customizable Axle Lengths: This 9 Inch Ford Cut-to-Fit Axle Kit includes two 31 spline axles, with lengths of 33" and 29.51", allowing you to build a custom width rear end tailored to your specific needs., Durable Steel Construction: Made from premium steel, these axle shafts guarantee consistent performance and reliability, perfect for both circle track and off-road applications., Versatile Bearing and Bolt Pattern Compatibility: Features the new style big bearing Ford (Torino style) bearing size and three different bolt patterns (5 on 4-1/2", 5 on 4-3/4", and 5 on 5"), providing flexibility in wheel and bearing selections., Ready-to-Install Design: The axles come with bearings already pressed in and an offset of 2-1/2", plus they are drilled for multiple wheel bolt patterns, ensuring a s 9 Inch Ford Cut-to-Fit Axle Kit, Big Ford/New Style, 31 Spline Sku # 9107997 Mfr. Part # 9107997 Condition New Brand Speedway Motors Sold Kit Details Info
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 and
- Street application 1/2" thread wheel studs sold separately and
- 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; and .
Long:
- 33" length with 9-1/4" of length with 10" of spline
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
Specs Material Type Steel Sold in Quantity Kit Finish Natural Spline Count 31 Bolt Pattern Multi: 5 on 5" | 4.75" | 4.50" Offset 2.50 Position Rear Wheel Studs Included No Cut to Fit Yes MFG. Part # 9107997 Housing End Style Big Ford/New Style (Torino) Reviews Good solid product! Rated by Hank F on March 09, 2021
Summary: Making your own length axles is a good option to have!!
Yes, I recommend this product.
I would buy this again for my next project Rated by Tony on January 20, 2021
Summary: Great product for customizing your 9 inch rear axle housing
Yes, I recommend this product.
have not used yet. Rated by Larry on September 28, 2020
Summary: using in my gasser
Yes, I recommend this product.
I would buy another set of these from speedway. Rated by The pack rat. on May 24, 2020
Summary: Measured and band sawed to length but yet to test for strength. Time will tell.
Pros: well made, snug fit in the gears.
Yes, I recommend this product.
i would use these again Rated by rod builder on May 15, 2020
Summary: good heavy axles, I liked the multi bolt pattern
Yes, I recommend this product.
Related Items / Suggested Parts Dorman 610-446 1/2-20 x 1.9 Inch Press-In Wheel Studs, .685 Knurl Axle Bearing Retainer, Big Ford New Style Axle Application Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
