Ford 10.25" / Ford 10.5" (Sterling / Visteon) Axle Parts, Gears, and Upgrades
Axle Specifications:
Ring Gear Diameter:
10.250 / 10.500
Diff Cover Bolts:
12
Ring Gear Bolts:
12
Axle Spline Count:
35
Axle Shaft Style:
Full & Semi-Float
C-Clips:
No
Pinion Support:
No
Pinion Nut:
1-1/8"
Pinion Crush Sleeve:
Yes
Carrier Breaks:
No
Dropout Carrier:
No
Oil Capacity:
3.5 qt. / Fill to Plug
Oil Type:
75W-140 Synthetic
Max Output Torque:
8,300 / 10,660 ft-lbs
Max Cont. Torque:
2,000 / 2,900 ft-lbs
Torque Specifications:
Pinion Preload New:
20 to 35 in-lbs
Pinion Preload Reused:
6 to 8 in-lbs
Ring Gear Backlash:
.006" to .010"
Ring Gear Bolt Torque:
95 ft-lbs
Carrier Bearing Caps:
80 ft-lbs
Popular Applications:
Ford E-250 / E-550
1985 - 2011
Rear
Ford F-150
2000 - 2010
Rear
Ford F-250 (Super Duty)
1985 - 2011
Rear
Ford F-350 (Super Duty)
1985 - 2011
Rear
Ford Excursion
2000 - 2005
Rear
Axle Images:
Changes By Year:
1983-1992
10.25" Short 31 Spline Pinion (1-1/4")
1993-1998
10.25" Long 31 Spline Pinion (1-5/8")
1999-2007
10.50" Long 31 Spline Pinion
2008-2010
Same as '99-'06 w/ Different Bearings
2011 +
10.50 w/ 37 Spline Pinion
Pinion Bearing Changes By Year:
1983-1997
Inner:
HM807010 / HM807044
1998-2007
Inner:
NP949481 / NP504493
2008-2010
Inner:
NP998236 / NP761271
2011-2016
Inner:
Outer:
Koyo 106102
M802047 / M802011
**To install Ford 10.25" gears in a 1998-2007 Ford 10.5" housing, use inner pinion bearing and race HM807010 / HM807044. A Long Spline Pinion Yoke will also be required. For 2008-2010 axle housings, a pinion bearing spacer is also required.
Axle Details
The Ford 10.25" and Ford 10.5" axles, also known as Visteon and Sterling axles because they are manufactured by Visteon at the Sterling Axle Plant in Sterling Heights, MI, are exclusive to Ford and were first introduced in 1985. The two axles are almost identical with the only differences being that the 10.25" has a 1/4" smaller ring gear and a one-piece differential case with 2 pinion gears. Both models use large 35 spline axle shafts, however, some versions of the Ford 10.25" came with semi-floating axle shafts while all Ford 10.5" axles are full-floating. Differential parts including ring and pinion sets are interchangeable between the two axles.
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