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Product Summary

Ford 9 Inch, 31 Spline Count, Steel

  • 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

Key Specs

MFG. Part #9107997
BrandSpeedway Motors
Material TypeSteel

Need To Know

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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

Also available for consideration when a replacement axle bearing retainer for either of the following Ford applications may be required:

  • Big Ford Old Style Axle Housing Bearing Retainer Application # 910-48376
  • Big Ford New Style Axle Housing Bearing Retainer Application # 910-48379

Specifications

KEY SPECS
MFG. Part #9107997
BrandSpeedway Motors
Material TypeSteel
GENERAL
PositionRear
Spline Count31
Bolt PatternMulti: 5 on 5" | 4.75" | 4.50"
Housing End StyleBig Ford/New Style (Torino)
Wheel Studs IncludedNo
FinishNatural
Sold in QuantityKit
Offset2.50"