Standard Steel Spools

 
All Mark Williams steel spools are precision machined from 4140 steel forgings on CNC machinery to ensure accuracy. The ring gear register and bearing diameters are precision ground with the spool mounted on a special arbor to assure concentricity between the splines and the ground surfaces. The final grinding operation also ensures zero runout on the ring mounting surface. Engineered for maximum reliability, MW spools also have an increased cross-section under the ring gear register to prevent ring gear deflection. MW spools are heat treated in-house with the same austemper through hardening heat treat process as MW’s “Hi-Torque” axles. Mark Williams steel spools are offered in both standard and lightweight versions. The major differences are the addition of lightening holes drilled through the hub of the spool and a profile milled ring gear flange. This reduces the weight by as much as 25% over the standard version without sacrificing the strength of the spool.
 
MW Advanatages:
  • Through hardened alloy steel, not egg-shell-thin hardened case
  • Ring gear mounting diameter is ground to precise press fit
  • All mounting diameters concentric and square within .001"
  • Increased cross section and generous radius under mounting prevents deforming
  • Models accomodate 28, 31, 35, and 40-spline axles
  • Models allow using 35-spline axles with 2.893 and 3.062 O.E.M. case bore sizes
 
Notes:
  1. G.M. applications require C-Clip eliminator or other axle retention method.
  2. 40-spline spools require 45 mm bore wheel bearing and matching housing ends.

 

 
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    8.8

    $310.00

    8.8" Ford 35 Spline Steel Spool

    Product Code: 53132

    MW 35 spline for 8.8" Ford

    More info

    8.8

    $279.00

    8.8" Ford MasterLine 35 Spline Steel Spool

    Product Code: ML-132

    MW 35 spline, MasterLine for 8.8" Ford

    More info

    9

    $310.00

    9" Ford 31 Spline Steel Spool

    Product Code: 53144

    Stock type 31-spline for 9" Ford, 2.893" or 3.062" case

    More info

    9

    $310.00

    9" Ford 35 Spline Steel Spool

    Product Code: 53146

    MW 35 spline for 9" Ford, 3.250" case

    More info

    9

    $310.00

    9" Ford 35 Spline Steel Spool

    Product Code: 53140

    MW 35 spline for 9" Ford, 2.893" and 3.062" case

    More info

    9

    $310.00

    9" Ford 40 Spline Steel Spool

    Product Code: 53136

    MW 40 spline for Ford 9", 3.250" case

    More info

    9

    $279.00

    9" Ford MasterLine 35 spline Spool

    Product Code: ML-146

    MW 35 spline, Masterline for 9" Ford, 3.250 case

    More info

    9

    $279.00

    9" Ford MasterLine 35 Spline Spool

    Product Code: ML-140

    MW 35 spline, MasterLine for 9" Ford, 2.893 or 3.062 case

    More info

    GM 12 Bolt 35 Spline Steel Spool

    $310.00

    GM 12 Bolt 35 Spline Steel Spool

    Product Code: 53160

    MW 35-spline for GM 12 Bolt

    More info

    GM 12 Bolt MasterLine 35 Spline Steel Spool

    $279.00

    GM 12 Bolt MasterLine 35 Spline Steel Spool

    Product Code: ML-160

    MW 35 spline for GM 12 Bolt

    More info

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