Bevel Gear Rear End V-Bearing Question
Posted: February 20th, 2021, 1:11 pm
Wondering if anyone has run into this before:
I purchased a new V-Bearing for my bevel gear end from Snyders (they only had one in stock), so proceeded to assemble the rear end gears with one original bearing in good shape, and the new bearing from Snyders. However once assembled, I noticed a difference between the new & original bearings - see photos below.
The original bearing is ford part number AA-4421E (as far as can tell from the stamped number), and has 20 roller bearings in the assembly.
The new part from Snyders is labeled 4421B and has 22 roller bearings in the assembly.
This is the only difference I can determine, micrometer measurements of the OD are with-in 0.003" as best as I can measure.
I have not been able to find any documentation on this type of revision. The June 1937 Chassis Parts List only lists part "BB-4221-AR" for 1930 - 1934 trucks, and part "BB-4221-B" for 1934 - 1937 trucks, but no specific info on the detailed designs of the bearings.
Has anyone seen this type of bearing revision, and do you know if using one of each would cause any issues?
As far as I can tell, the only difference is in the number of roller bearings in the assembly which I assume would not be an issue...but I would like to be certain before proceeding with wiring the housing bolts together & final assembly.
I purchased a new V-Bearing for my bevel gear end from Snyders (they only had one in stock), so proceeded to assemble the rear end gears with one original bearing in good shape, and the new bearing from Snyders. However once assembled, I noticed a difference between the new & original bearings - see photos below.
The original bearing is ford part number AA-4421E (as far as can tell from the stamped number), and has 20 roller bearings in the assembly.
The new part from Snyders is labeled 4421B and has 22 roller bearings in the assembly.
This is the only difference I can determine, micrometer measurements of the OD are with-in 0.003" as best as I can measure.
I have not been able to find any documentation on this type of revision. The June 1937 Chassis Parts List only lists part "BB-4221-AR" for 1930 - 1934 trucks, and part "BB-4221-B" for 1934 - 1937 trucks, but no specific info on the detailed designs of the bearings.
Has anyone seen this type of bearing revision, and do you know if using one of each would cause any issues?
As far as I can tell, the only difference is in the number of roller bearings in the assembly which I assume would not be an issue...but I would like to be certain before proceeding with wiring the housing bolts together & final assembly.