Ford 9 Inch Gear-Style Posi Third Members w/ Currie Housing
Ford 9 Inch Gear-Style Posi Third Members w/ Currie Housing
Speedway Motors

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#91048446

Ford 9 Inch Gear-Style Posi Third Members w/ Currie Housing

  • This Ford 9" rear end has a Currie CE-4026C Ford "N" nodular iron carrier housing
  • Includes a 1310-series yoke that is the correct size for many Ford applications
  • The F9-Plus Sportsman gear case is a 100% new unit cast out of 65,000 p.s.i. nodular iron and features 3.062" carrier bearing bores
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$1,483.99

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Product Summary

Ford 9 Inch, Limited Slip Differential Type

  • This Ford 9" rear end has a Currie CE-4026C Ford "N" nodular iron carrier housing
  • Includes a 1310-series yoke that is the correct size for many Ford applications
  • The F9-Plus Sportsman gear case is a 100% new unit cast out of 65,000 p.s.i. nodular iron and features 3.062" carrier bearing bores
  • Rated to handle upwards of 600 horsepower
  • They are available in your choice of 3.50, 3.70, 3.89, 4.11 or 4.56 gear ratio
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Key Specs

Differential TypeLimited Slip
Housing MaterialNodular Iron
Gear RatioSelect Spline and Ratio
Axle SplinesSelect Spline and Ratio
Yoke U-Joint Series1310
See more specs

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Assembled by Professionals

Hand-assembled by trained experts in-house, our Ford 9-inch third members are built from quality components with an exact step-by-step process. We bring this combination of precision assembly and quality components to you at a price that can’t be beat. We trust these third members so much, they’re the go-to choice for our own rides, from the street to the track.

If you’re looking for a complete third member for your Ford 9-inch rear end housing, but want the added performance of a limited slip differential, Speedway Motors now offers you a 9" Ford street 3rd member for your street rod, muscle car or truck. We start with a Currie CE-4026C Ford "N" nodular iron carrier housing and then install bearings, seals, a heavy duty "Daytona" pinion support, a 1310-series yoke, and your choice of ring-and-pinion ratios. The 1310-series yoke is the correct size for many Ford applications with cups 1-1/16 inch in outside diameter and a span of 3-7/32 inch across.

Note - Speedway Motors Differential 3rd members come with a 1310 Universal Joint (U-Joint) series yoke. No other Yoke size options are available. 

1310 series U-Joint and Bearing Cap Reatainers Not Included - Sold Seperatly

F9-Plus Sportsman gear case is a 100% new unit cast out of 65,000 p.s.i. nodular iron and features 3.062" carrier bearing bores. Case is complete with caps, cap bolts, billet spanner nuts, and spanner nut retainers. Horsepower limit is approximately 600. 

These Ford 9 inch third member assemblies feature a Richmond Powertrax Grip Pro limited slip differential available in 28 or 31 spline axle shaft configurations. This helical gear differential is perfect for light-to-medium weight street vehicles where one wants posi-action without the adverse handling effects or noise of a full locker. Because there are no friction plates, there is no friction modifier additive necessary.

All third members are assembled by our team of professionals and are delivered to you in a handy plastic carrying case, for an overall value that can’t be beat.

Available in your choice of 3.50, 3.70, 3.89, 4.11 or 4.56 gear ratio.

 

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Warranty Information

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No warranty is offered for commercial, off road, street performance, or racing use.

Specifications

KEY SPECS
MFG. Part #Select Spline and Ratio to see
BrandSpeedway Motors
Differential TypeLimited Slip
Housing MaterialNodular Iron
Gear RatioSelect Spline and Ratio to see
Axle SplinesSelect Spline and Ratio to see
Yoke U-Joint Series1310
Spool WeightStandard
Ring Gear WeightStandard
GENERAL
Yoke Width3-7/32"
U-Joint Cap Size1-1/16"
Weight78.55 lbs.
Sold in QuantityEach
Gear MaterialSteel
Yoke IncludedYes
Ring and Pinion IncludedYes
Carrier StyleGear Style Posi

Ratings & Reviews

4.9

9 Reviews

Overall Assessment

Customers appreciate our product for its quality and durability, indicating that it outperforms competitor versions of differentials. Its high capacity and longevity are particularly praised, proving superior in thorough user research. The product has proven itself practically, being professionally built and solid, with customers noting successful installations in various vehicles like 1970 Camaro with LS3, 525hp, and 64 C10 truck. It also surpasses expectations in performance, reducing noise levels compared to alternatives, and ideal for those who enjoy black burnout marks. It's noted as a 'bullet-proof', cost-effective solution, making it a more sensible choice to buy this complete third member from our range. Overall, this product provides the 'best bang for your buck' in terms of price and quality.

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4.9

9 reviews

5

8

4

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THE FORD 9" DIFF WORKED FINE AND WAS QUIET

5.0

a year ago

DYNO DREW

IDAHO FALLS IDAHO

Verified

THE WAY IT WAS SHIPPED AND HOW IT WAS PUT TOGETHER WAS VERY IMPRESSIVE. THANK YOU!

Would Recommend

I would buy this product again

5.0

3 years ago

Billy

Tennessee

Verified

I feel it's a very good product

Would Recommend

My research verified this differntial to be superior

5.0

7 years ago

Evan

Colorado

Verified

I needed a longer lasting, higher capacity differential that this design provided.

Would Recommend

Well built, would've liked to get hardware

4.0

8 years ago

Journeywork

Dallas, TX

Verified

It's profesionally built and solid. Would be nice if it came with copper washers, gasket, nuts.

Would Recommend

Great part, delivered as advertised

5.0

8 years ago

Ole Andy

Portland OR

Verified

Put in my 1970 Camaro with LS3, 525hp, broke in recently and now starting to burn out a little. Lays out nice black burn out marks, just the way I like it. No complaints.

Would Recommend

I would purchase this product again

5.0

9 years ago

Bob

Wallowa Or

Verified

Installed in my 64 C10 truck

Would Recommend

Bullet-proof

5.0

9 years ago

Senior citizen and never gonna grow up

Tx

Verified

Going into my 57 BA

Would Recommend

Great

5.0

9 years ago

The wife

Olive branch MS

Verified

This works great .. Does not make the noise like my old 4:11 posi unite did ..

Would Recommend

Customer review image

Best bang for your buck.

5.0

9 years ago

Chevy ii Dave.

Baltimore, md.

Verified

I looked at purchasing pieces for my ford 9", then I looked at the complete package from speedway and it made much more sense. For the price and quality and my application, it was a better option for me to buy a complete third member from speedway. Great company with awesome tech support and customer service.

Would Recommend

Showing 9 of 9 reviews

Questions & Answers

5 Questions • 6 Answers

1) Do you offer this with a 1330 yoke? 2) How do the Richmond gears compare with the Detroit Truetrac? 3) Do you offer the isotopic finishing on the ring & pinion?

by Charles

• 7 years ago

1 answer

View Answer

Hi, I would like to know a difference Of # 91048446 and # 91048345 product ? Thanks

by Benoit

• 7 years ago

2 answers

View Answers

Could you tell me the spline count on the yoke and input shaft? Thanks.

by Dave

• 8 years ago

1 answer

View Answer

I have a 54' Chevy 3100 1/2 ton truck with an LS Vortec motor out of an 03' Tahoe with a 4L80E transmission. What gearing would you recommend with this setup i have? I plan to use 18"-20" wheels on the truck. Haven't decided yet. Will be used for street use and not race. Thanks

by SFFD103

• 9 years ago

1 answer

View Answer

will this rear fit my 1978 ford f 150 4x4

by marcel

• 9 years ago

1 answer

View Answer

5 of 5 questions shown

Customer Impersonation Script