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Ford 9 Inch Third Member Assembly, Mini Spool, 28-Spline

Price: $499.99 - $579.99
Sale: $479.99 - $579.99
Up to $100.00 off
FORD 9" 3RD MEMBER ASSEMBLY, 28 SPLINE, MINI SPOOL
Item #:
91048340
Item Details:
5.50 is garage sale clearance!
Ford 9 Inch Third Member Assembly, Mini Spool, 28-Spline
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  • Profesionally assembled for oval track racing only 
  • Pro Gears ring & pinion
  • Your choice of gear ratio, 3.50:1 to 7.33:1
  • 28-spline premium mini spool
  • New chromoly cross pin
  • Viton high heat pinion seal
  • Solid pinion bearing spacer with shims
  • Includes 3-5/8"stock Ford yoke.

910-48340 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.

  • 91048340-350
    Spline Count
    28
    Gear Ratio
    3.50:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-370
    Spline Count
    28
    Gear Ratio
    3.70:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-389
    Spline Count
    28
    Gear Ratio
    3.89:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-411
    Spline Count
    28
    Gear Ratio
    4.11:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-430
    Spline Count
    28
    Gear Ratio
    4.30:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-457
    Spline Count
    28
    Gear Ratio
    4.57:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-471
    Spline Count
    28
    Gear Ratio
    4.71:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-478
    Spline Count
    28
    Gear Ratio
    4.78:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-486
    Spline Count
    28
    Gear Ratio
    4.86:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-500
    Spline Count
    28
    Gear Ratio
    5.00:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-514
    Spline Count
    28
    Gear Ratio
    5.14:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-525
    Spline Count
    28
    Gear Ratio
    5.25:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-529
    Spline Count
    28
    Gear Ratio
    5.29:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-537
    Spline Count
    28
    Gear Ratio
    5.37:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-543
    Spline Count
    28
    Gear Ratio
    5.43:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-550
    Spline Count
    28
    Gear Ratio
    5.50:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-567
    Spline Count
    28
    Gear Ratio
    5.67:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-583
    Spline Count
    28
    Gear Ratio
    5.83:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-600
    Spline Count
    28
    Gear Ratio
    6.00:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-614
    Spline Count
    28
    Gear Ratio
    Choice of 3.50:1 to 7.33:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-633L
    Spline Count
    28
    Gear Ratio
    6.33:1
    Sold in Quantity
    Each
  • 91048340-683
    Spline Count
    28
    Gear Ratio
    Choice of 3.50:1 to 7.33:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-700
    Spline Count
    28
    Gear Ratio
    Choice of 3.50:1 to 7.33:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-716
    Spline Count
    28
    Gear Ratio
    Choice of 3.50:1 to 7.33:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box
  • 91048340-733
    Spline Count
    28
    Gear Ratio
    Choice of 3.50:1 to 7.33:1
    Notes
    Includes 3-5/8" stock Ford yoke.
    Sold in Quantity
    Box

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

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