Product Summary

Rear Position, 61.25" Overall Width, 31 Axle Splines

  • Direct fit black powder coated 9-inch Ford axle housing for your 70-81 F-Body Camaro or Firebird
  • Pre-welded shock mounts and stock location leaf spring pads for stock ride height
  • Includes 31 spline performance axle package with new bearings, seals, retainers, and T-bolts
  • New Big Ford style ends - accepts 2.5" offset brakes
  • Retains factory GM 5 on 4-3/4 wheel bolt pattern with 1/2-20 thread wheel studs

Comes as a Kit

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Key Specs

MFG. Part #99107081
PositionRear
Overall Width61.25"
Axle Splines31
Axle TypeSemi-Floating
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Speedway Motors 99107081 Details

  • Housing length: 56-1/4 inches (from flange-to-flange).
  • Total wheel-to-wheel mounting surface width is 61-1/4 inches (from hub-to-hub).
  • Direct replacement Ford 9-inch housing rear end for your 2nd gen Camaro
  • Pre-welded mounting pads retain stock leaf spring mounting location
  • Uses factory shock mounting location to retain stock shock length
  • 9-inch housing features stock 70-81 F-Body rear end width flange to flange for perfect fit
  • Housing is gloss black powder coated for protection and appearance
  • Works with any Ford 9-inch housing center section (sold separately)
  • Big Ford new style “Torino” axle flange accepts drum or disc brakes
  • New 31 spline axles come with bearings, lock rings, axle seals, and wheel studs installed
  • Axles feature 5x4.5 and 5x4.75 GM car dual bolt patterns with 1/2-20 threaded studs

A Direct-Fit Ford 9-inch Rear End Housing for Your Second Gen Camaro or Firebird

There is certainly no denying the popularity of Ford’s venerable 9-inch rear axle when it comes to high performance street and racing applications. It is probably a safe bet there are more non-Ford vehicles on the road (and track) with a Ford 9-inch rear end under them than Ford ever shipped off their assembly lines! That is saying a lot right there. From the stronger housing design to the huge aftermarket support in axles, differentials, ring and pinion gears, and more, the Ford 9-inch rear end is the performance axle housing to use, without a doubt.

For those building up a 1970-1981 Camaro or Firebird, Speedway Motors offers a bolt-in 9-inch Ford rear end housing for your build that is a direct swap for stock first gen F-Body rear ends. This Camaro rear end housing is made from premium steel and is fully welded, including brand new “Torino” big Ford axle housing ends and features a durable gloss black powder coat for long term protection and great looks under your second gen Camaro or Firebird. The housing maintains the 2nd gen Camaro/Firebird rear end width and retains the stock shock mount locations as well. The axle’s leaf spring mounting pads are welded in their stock mounting location for a bolt in solution. This allows you to retain stock ride height characteristics or you can lower the rear of your F-Body via lowering springs, shackles, or other options.

Includes Fully Assembled Axles Ready for Your Differential and Center Section

Our 2nd gen Camaro/Firebird 9-inch rear end housing package includes strong 31-spline performance axles with bearings and bearing lock rings already pressed into place on the axles. The axles feature dual Ford/Chevy bolt pattern of 5 on 4-3/4 and of 5 on 4-1/2 with 1/2-20 press-in threaded studs preinstalled in the 5 on 4-3/4 GM pattern. Finally, we include the axle retainer brackets and the correct 9-inch T-bolts and nuts to secure the axles and your drum or disc brake kit of choice.

Additional hardware includes 10 press-in studs with nylon locking nuts for the main F-Body 9-inch housing to center section assembly, and a screw in axle vent fitting. All your new Ford 9-inch housing needs for completion is a complete center section with your choice of differential and gearing and drum or disc brake package. Our complete 9-inch 3rd members are the perfect choice to finish your first gen F-body 9-inch rear end build. Replace your tired 67-69 Camaro/Firebird rear end with our Ford 9-inch rear end in your 67-69 F-body while maintaining the stock rear end width and upgrade to the strength and vast options the Ford 9-inch offers.

Speedway Motors 99107081 Specifications

KEY SPECS
MFG. Part #99107081
BrandSpeedway Motors
PositionRear
Overall Width61.25"
Axle Splines31
Axle TypeSemi-Floating
Brakes IncludedNo
Wheel Studs IncludedYes
Wheel Bolt Pattern (in.)5x4.5 in. | 5x4.75 in.
Material TypeSteel
FinishPowder Coated
Tube O.D.3"
Housing MaterialSteel
Hardware IncludedYes
Rotors IncludedNo
Rotor DiameterNot Included
GENERAL
Sold in QuantityKit
Notes1/2"-20 wheel studs, 2" long, 0.685" knurled
Axle Shafts IncludedYes
Third Member IncludedNo
Ring and Pinion IncludedNo
Wheel Stud Thread Size1/2"-20
Bearings IncludedYes
Seals IncludedYes
Differential IncludedNo
Ring Gear Size9 Inch
Housing ColorBlack
Cut to FitNo
Standard Pinion LocationCentered Pinion / Offset 3rd Member

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