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(520) 327-1747  |   info@westerndiff.com  | 3825 E Kleindale Rd Tucson, AZ 85716

Ford 9" Third Members

All New Ford 9” Third Members

Non-Posi Ford 9" Third Member

  • We Recommend up to 500 HP
  • Strange Nodular 'S' Third Member Case
  • WD Aluminum Daytona Pinion Support
  • New Yoke**
  • 28 or 31 Spline Non-Posi Carrier with All New Inner Gears
  • Your choice of Gear Ratio*
  • All New Timken Bearings, National or Chicago Rawhide seals
  • Solid Pinion Bearing Preload Spacer and Grade 8 Bolts

Please Call for Pricing 

 

Posi Ford 9" Third Member

  • We Recommend up to 500 HP
  • Strange Nodular 'S' Third Member Case
  • WD Aluminum Daytona Pinion Support
  • New Yoke**
  • 28 or 31 Spline Steel Billet Tracloc Limited Slip Posi
  • Your choice of Gear Ratio*
  • All New Timken Bearings, National or Chicago Rawhide seals
  • Solid Pinion Bearing Preload Spacer and Grade 8 Bolts

Please Call for Pricing 

Posi Ford 9" Third Member Upgrades

  • With 28 or 31 Spline Spool (Drag Race Only) 
  • With 35 Spline Spool (Drag Race Only) 
  • With 28 or 31 Spline TrueTrac 
  • With 35 Spline TrueTrac 
  • With 31 or 35 Spline Detroit Locker (Do Not Recommend for Street) 
  • With 31 or 35 Spline Wavetrac 
  • With 35 Spline Strange H/D Helical 
  • With 31 Spline ARB RD-119 Air Locker 
  • With 35 Spline ARB RD-99 Air Locker 

Please Call for Pricing 

Street Rod & Drag Racing Recommendations

*Popular Gear Ratios Available for our Ford 9” Third members are listed below. If you do not see the ratio you would like please contact us at (520) 327-1747
3.00, 3.25, 3.50, 3.55, 3.70, 3.89, 4.11, 4.30, 4.57, 4.86, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, and 6.50
** Yoke Choices are forged 1310, 1330, 1350.
Steel Billet Yokes in 1310 or 1350 = Additional costs
3.75 Ratio = Additional costs
Call for Pro Gear ratios and prices.

Posi Ford 9" Third Member High Pinion Upgrade - Occasionally we get good used cases, so give us a call.
Currie Enterprises no longer offers a Ford 9" high pinion third member case.

Ford 9" Third Member Rebuild

Send us your Ford 9” Third Member and have Western Differential rebuild to fit your needs with quality parts.

 

Non-Posi Ford 9" Third Member Rebuild (Exchange)

  • Starting with your OEM Case, Yoke and Pinion Support
  • Rebuilt 28 or 31 Spline Carrier with All New Inner Gears
  • Your choice of Gear Ratio*
  • All New Timken Bearings and National or Chicago Rawhide Seals
  • Solid Pinion Bearing Preload Spacer and Grade 8 bolts

Warranty: 12 Months - 12,000 Miles

Please Call for Pricing 

Posi Ford 9" Third Member Rebuild (Exchange)

  • Starting with your OEM Case, Yoke and Pinion Support
  • New 28 or 31 Spline Steel Billet Tracloc Limited-Slip Posi
  • Your choice of Gear Ratio*
  • All New Timken Bearings and National or Chicago Rawhide Seals
  • Solid Pinion Bearing Preload Spacer and Grade 8 bolts

Warranty: 12 Months - 12,000 Miles

Please Call for Pricing 

Performance Option

Add a Western Differential Aluminum Daytona Pinion Support which utilizes larger pinion bearings for increased strength.

Bare Pinion Support 
Pinion Support, Pinion Bearings, Pinion Seal and Solid Spacer Kit 

Strange Pro Nodular Iron Third Member Case 

Strange HD Pro Aluminum Third Member Case, HD Pro Aluminum Pinion Support, Pinion Setup Kit and All Third Member Bearings 

Moser Through Bolt Aluminum Case with WD Aluminum Daytona Pinion Support 

Please Call for Pricing 

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