68 F100 two wheel drive rear AXLE
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1968/72 F100: There were TWO different 9" rear axles used in these trucks.
One has a 9" ring gear, 28 spline axle shafts, 3,300 lb. rear axle capacity.
The other has a 9 3/8" ring gear, 31 spline axle shafts, 3.600 lb. rear axle capacity.
Only 5 parts used with the 9" are the same as a 9 3/8" / Housing gasket, pinion seal, one pinion bearing and race, pilot bearing retainer. EVERYTHING else is different!
The AXLE code stamped on the Warranty Plate will decode to which axle is present, as will the rear axle ID tag.
The rear axle ID tag is located under one of the bolts that retains the carrier to the housing, originally at 5 o'clock.
But today, many of these tags are missing.
C8TZ-4234-A .. 28 spline Axle Shaft / Use w/9" ring gear / Right/Left is the same / 1968/72 F100 / Obsolete
C8TZ-4234-B .. 31 spline Axle Shaft / Use w/9 3/8" ring gear / Right/Left is the same / 1968/72 F100 / Obsolete
One has a 9" ring gear, 28 spline axle shafts, 3,300 lb. rear axle capacity.
The other has a 9 3/8" ring gear, 31 spline axle shafts, 3.600 lb. rear axle capacity.
Only 5 parts used with the 9" are the same as a 9 3/8" / Housing gasket, pinion seal, one pinion bearing and race, pilot bearing retainer. EVERYTHING else is different!
The AXLE code stamped on the Warranty Plate will decode to which axle is present, as will the rear axle ID tag.
The rear axle ID tag is located under one of the bolts that retains the carrier to the housing, originally at 5 o'clock.
But today, many of these tags are missing.
C8TZ-4234-A .. 28 spline Axle Shaft / Use w/9" ring gear / Right/Left is the same / 1968/72 F100 / Obsolete
C8TZ-4234-B .. 31 spline Axle Shaft / Use w/9 3/8" ring gear / Right/Left is the same / 1968/72 F100 / Obsolete
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