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Ford 9 Inch Third Member Assembly, Mini Spool, 31-Spline
Ford 9 Inch Third Member Assembly, Mini Spool, 31-Spline

Ford 9 Inch Third Member Assembly, Mini Spool, 31-Spline

Ford 9", Grand National, Mini Spool Differential Type, 31 Axle Splines, Standard Spool Weight

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Ford 9 Inch Third Member Assembly, Mini Spool, 31-Spline
Ford 9 Inch Third Member Assembly, Mini Spool, 31-Spline
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Part # 91048341
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Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

Differential Type:
Mini Spool
Housing Material:
Cast-Iron
Axle Splines:
31
Gear Ratio:
Select Gear Ratio to see
Spool Weight:
Standard
Ring Gear Weight:
Select Gear Ratio to see
Weight:
83.25 lbs.
MFG. Part #:
Select Gear Ratio to see
Sold in Quantity:
Each
Gear Material:
Steel

Info

  • Profesionally assembled for oval track racing only 
  • Pro Gears ring & pinion
  • Your choice of gear ratio, 3.50:1 to 7.33:1
  • 31-spline premium mini spool
  • New chromoly cross pin
  • Viton high heat pinion seal
  • Solid pinion bearing spacer with shims
  • Provided with stock O/E pinion yoke
  • Weighs 83.25 lbs
  • 4.78 is Garage Sale Clearance

910-48341 Instructions (PDF)

Third members are made to order. Please allow 24-48 hours for order to ship.

Available options include a yoke to accept 3 1/4" Chevy/GM U-joint (add 91048339) or lightening of the ring gear to remove weight (add 91600013; ratios 4.78, 5.25, 5.37, 5.50, 5.57, 6.14, 6.66, 6.83, 7.00, 7.16, and 7.33 are already lightened). The letter "L" behind a ratio also indicates the availability of a lightened ratio.

Notes

NOTE: Circle track racing applications require a minimum of 4 qts. of rearend lube. Using less than this amount will lead to immediate pinion failure.

Warranties

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

Some parts are not legal for use in California or other states with similar laws/regulations

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