Front drum rebuild and questions
#16
06-24-2017, 04:17 PM
Which bearings are you referring to, the axle shaft bearings or the differential bearings?
If it's the axle shaft bearings, there was no such thing as tapered roller bearings until 1974.
F100: ALL 1957/73 9" & 1959/68 Dana 44 & 1963/66 Dana 60.2 & 1966/68 Dana 60.3 have ball type axle bearings.
All these Dana's came with Limited Slip, because Ford didn't offer the 9" with Limited Slip in F100's until 1968.
1974/79 9's could have ball type or tapered roller bearings. Tapered roller bearing uses a different axle shaft seal than 9."
Some 1976/79 F100/150 have Dana 44 rear axles with or without Limited Slip.
If it's the axle shaft bearings, there was no such thing as tapered roller bearings until 1974.
F100: ALL 1957/73 9" & 1959/68 Dana 44 & 1963/66 Dana 60.2 & 1966/68 Dana 60.3 have ball type axle bearings.
All these Dana's came with Limited Slip, because Ford didn't offer the 9" with Limited Slip in F100's until 1968.
1974/79 9's could have ball type or tapered roller bearings. Tapered roller bearing uses a different axle shaft seal than 9."
Some 1976/79 F100/150 have Dana 44 rear axles with or without Limited Slip.
That's not true. Dana 44's are taper roller axle bearings. It even shows that in my factory service manual for 1968.
#17
06-24-2017, 04:31 PM
Lead Driver
In the case of the '68-'72 Ford 9-3/8" rear ends (very close cousin to the 9-inch but not the same thing as), the 3300# 31-spline axle version of the Ford 9-3/8" rear end used the very same ball bearings as the 3300# 28-spline axles in the 9-inch rears. While the 3600# version of the 31-spline axles in the 9-3/8" rear ends didn't have tapered roller bearings, they did have rollers in the axle bearings.
#18
06-25-2017, 09:03 AM
It even shows that in my factory service manual for 1968.1961/79 FoMoCo Passenger Cars; 1961/83 F100; 1966/86 Bronco; 1969/74 E200; 1975/86 F150; 1975/87 E100/150.
Except: 1970/72 F100 with 9 3/8" ring gear; 1974/79 F100/150 & Passenger Cars; 1978/79 Bronco with tapered roller bearing/seal combination.
------------------------------------------------------------------------------------------------------------------------------------------------------------------
D0TZ-1225-A .. Ball Type Axle Bearing.
1970/72 F100 with 9 3/8" ring gear & 3,600 lbs. capacity rear axle.
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D4AZ-1225-A .. Tapered Roller Axle Bearing/Seal Combination.
1974/79 F100, 1975/79 F150, 1978/79 Bronco & misc 1974/79 Passenger Cars.
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