Direct fit bare steel 9-inch Ford axle housing for your 67-70 Ford Mustang, 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 Ford 5 on 4-1/2 wheel bolt pattern with 1/2-20 thread wheel studs
1967-70 Mustang Ford 9 Inch Bolt-In Rear End Swap Kit, Bare Speedway Motors
1967-70 Mustang Ford 9 Inch Bolt-In Rear End Swap Kit, Bare
Sku # 99046770
Mfr. Part # 99046770
Condition
New
Brand
Speedway Motors
Sold
Each
Details
  • Housing length: 54-1/4 inches (from flange-to-flange)
  • Total wheel-to-wheel mounting surface width is 59-1/4 inches (from hub-to-hub)
  • Direct replacement Ford 9-inch housing rear end for your 67-70 Mustang
  • 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 67-70 Mustang rear end width flange to flange for perfect fit
  • 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 Ford and 5x4.75 GM car bolt patterns with 1/2-20 threaded studs

A Direct-Fit Ford 9-inch Rear End Housing for Your First Gen 67-70 Mustang

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 67-70 Mustang, Speedway Motors offers a bolt-in 9-inch Ford rear end housing for your build that is a direct swap for stock first gen 67-70 Mustang rear ends. This Mustang rear end housing is made from premium steel and is fully welded, including brand new “Torino” big Ford axle housing ends. The housing maintains the 67-70 Mustang 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 Mustang via Shop 65-66 Mustang Lowering Leaf Springs, Shop Leaf Spring Lowering Blocks, or other options.

Includes Fully Assembled Axles Ready for Your Differential and Center Section

Our 67-70 Ford Mustang 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 4-1/2 Ford 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 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 Shop 9-inch Ford Differentials and Shop 9-inch Ford Ring & Pinion Gear Sets and Shop 9-inch Ford Drum Brake Kits or Shop 9-inch Ford Disc Brake Kits brake package. Our Shop Assembled 9-inch 3rd Members/Center Sections are the perfect choice to finish your first gen 67-70 Mustang 9-inch rear end build. Replace your tired 67-70 Ford Mustang rear end with our Ford 9-inch rear end in your 67-70 Mustang while maintaining the stock rear end width and upgrade to the strength and vast options the Ford 9-inch offers.

Specs
Sold in Quantity
Kit
MFG. Part #
99046770
Notes
1/2"-20 wheel studs, 2" long, 0.685" knurled
Position
Rear
Overall Width
59.25"
Axle Shafts Included
Yes
Axle Splines
31
Axle Type
Semi-Floating
Brakes Included
No
Third Member Included
No
Ring and Pinion Included
No
Wheel Studs Included
Yes
Wheel Stud Thread Size
1/2"-20
Wheel Bolt Pattern (in.)
5x4.5 in. | 5x4.75 in.
Bearings Included
Yes
Seals Included
Yes
Differential Included
No
Material Type
Steel
Finish
Natural
Ring Gear Size
9 Inch
Tube O.D.
3"
Housing Material
Steel
Hardware Included
Yes
Rotors Included
No
Rotor Diameter
Not Included
Housing Color
Natural
Cut to Fit
No
Standard Pinion Location
Centered Pinion / Offset 3rd Member
Bolt Pattern
5 on 4.5"
Reviews

Would buy again. Could be better

Rated
Product Rating
by Kel on October 24, 2024

Summary: Everything about this kit is pretty nice. Welds are nice. Simple upgrade would be a drain plug. Does come with hardware for mounting the 3rd and the hardware/ back plate for the axle ends.

Yes, I recommend this product.

great quality

Rated
Product Rating
by Double on May 14, 2021

Summary: website suggest to buy the studs for the housing that i bought. The housing came with the studs. It was unclear if the product came with the studs or not and would be helpful to mention this. Maybe i missed this somewhere. The rear-end housing is great and i have no complaints about that.

Yes, I recommend this product.

I think this rear housing and axles are 5 star.

Rated
Product Rating
by Horse fly on March 21, 2020

Summary: I would buy it again if I need to.

Yes, I recommend this product.

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Tech Support
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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 74 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.