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Currie 9 Inch Ford Rear Axle Kit

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Currie 9 Inch Ford Rear Axle KitCurrie 9 Inch Ford Rear Axle KitCurrie 9 Inch Ford Rear Axle KitCurrie 9 Inch Ford Rear Axle KitCurrie 9 Inch Ford Rear Axle KitCurrie 9 Inch Ford Rear Axle Kit
Currie 9 Inch Ford Rear Axle Kit

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What's in the Box

Currie's Universal Hot Rod Ford 9" kit includes a brand new 56" housing, lifetime warranty 31 spline axles, new axle bearings and seals, and new style big Ford ends. 

  • Housing is 56" from axle face to axle face
  • Axles drilled for 5 x 4-1/2" Ford/Mopar and 5 x 4-3/4" Chevy/GM bolt patterns
  • Includes wheel studs, 1/2"-20 Ford and 7/16"-20 Chevy
  • 1/4" heavy duty late model large bearing style retainer plates

Note: Axle bearing does not come pressed onto the axle shaft, and wheel studs are not installed. Third member not included.

Currie Rear Axle Installation Instructions

How to Measure Your Housing Tech Tip (Link)

Need a certain length not found on our site?  Check out Currie's 9+ Rearend Calculator to have specially sized axles or rearend housings made for your specific application.  Custom orders will be built and processed directly through Currie Enterprizes and shipped to your door. For ease of ordering, please refer to Currie's Dimension Diagram

Installation Notes:

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.

To ensure you get the most out of your new 9 Inch components, Currie recommends 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

Note: If you find that your rearend is running somewhat "tight" be sure to add Currie's 9+ Friction Modifier to "loosen up".  If a more aggressive performance is desired, Friction Modifier is not needed.

 

 

Application

  • 2.500" brake spacing offset
  • 2.800" axle register diameter

Specs

  • 2.500" brake spacing offset
  • 2.800" axle register diameter

You may also be interested in:

9 Inch Ford Rear End Overhaul Kit
SKU-9190950
                        This 9" Ford overhaul kit includes: pinion pilot, pinion shaft, pinion nut, pinion seal, gasket, shims, crush collar, sealant, gear marking grease, brush and Loctite. Ring gear bolts not included. 

NOTE: All Ford 9" full spools use overhaul kit 9190950-31, even if they are a 28-spline spool. The 9190950-31 contains the large I.D. standard O.D. carrier bearings and pinion bearings needed for use with our full spools.

If you are using the H.D. nodular iron center section which uses the large diameter carrier bearings, order kit 9190950-31s, which also includes the large pinion bearings for use with the Daytona pinion support.

9" Ford Carrier Bearing Chart (GIF)  - Double check your bearing p/n.

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Speedway Motors now offers you a 9" Ford street 3rd member for your street rod. We reclaim genuine Ford 9" housings, clean, inspect and install all new components. All bearings, seals, 1310 series yoke and ring & pinion are new!

These Ford 9" 3rd member assemblies feature new Pro Gears ring & pinion, choice of 3.50, 3.70, 3.89, 4.11 or 4.56, Currie 9-Plus limited slip differential, 28 or 31 spline. Shipped in handy plastic carrying case. Assembled by professionals.

 

Currie Differential Tech Bulletin (PDF)

 

910-48345 Instructions (PDF)

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This new cast iron housing is built to take street/strip abuse without the fear of breaking. Case has forged caps and extra beef where it's needed. Most stock differentials use the 3.062" o.d. bearings # TLM603049 w/ 1.781" i/d. You should also add a new heavy duty cast iron pinion support while you're at it. 

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This brand new carrier housing is built to take street/strip abuse without the fear of breaking. Our aluminum housing has forged caps and extra beef where it's needed. Most stock differentials use the 3.062" o.d. bearings # TLM603049 w/ 1.781" i/d.

The aluminum case will save you 20 lbs. over the cast iron version. You should also add a new heavy duty aluminum pinion support while you're at it. 

Carrier caps torque to 95 ft lbs.

NEW Ford 9 Inch Posi Traction Third Member
SKU-91048445
                        

Our completely NEW 9" Ford third members start with a heavy duty cast iron carrier featuring the larger, cast iron Daytona pinion support. Then we use a Currie 9+ limited slip differential in your choice of 28 or 31 spline and a 3.50, 3.70, 3.89, 4.11, or 4.56 gear ratio ring & pinion. Also includes NEW bearings and seals. Shipped ready for use in a plastic case.


Currie Differential Tech Bulletin (PDF)

Currie 95300 1/2 x 1-15/16 Inch Wheel Stud
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SKU-91095302
                        

This wheel stud manufactured from Currie Enterprises is made of a high strength steel. Its press-in design makes it stronger than stock. These wheel studs are sold individually.

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SKU-91095304
                        

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Axle Flange Identification Chart (Link)

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Kit is designed for the late model Ford 8.8" truck and 9" (New Style Big Ford housing with 3.15 bearings, 2.5" offset) rear axles. Will NOT work with Mustang 8.8" axle.

Rotors are drilled for 5 on 4-1/2" bolt pattern. See Notes tab for important install info.

Will Not Work On 15" or 16" Wheels.

Axle Flange ID Chart

 

Clearance!

 

NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

Wilwood 140-7140 Rear Disc Brake Kit, Big Ford 9 Inch New 2-1/2 Offset
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835-1407140 Instructions (PDF)

Axle Flange Identification Chart  (GIF)