Part numbers in post 3: Prices different, lower bearing obsolete as is its sleeve (not listed in post 3). tpdaniels got "laid away" on the upper sleeve, cuz it was never $8.80.

C3DZ-3517-A .. Steering Column Bearing / Available from Ford.

Too many 1960/79 car/truck applications to list.

MSRP: $10.68 / FTE sponsor tousleyfordparts.com price: $7.05.
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F23Z-3517-B (replaced E1FZ-3517-B, D4TZ-3517-A & B, DOAZ-3517-A, C7SZ-3517-D & C3AZ-3517-A) .. Steering Column Bearing / Obsolete

Misc applications: 1966/76 F100 4WD (lower) / 1967/79 F250 4WD (lower) / 1975/79 F150 4WD (lower) / 1981/97 Escort/Lynx & 1984/95 Tempo/Topaz (upper).

Over 100 available NOS
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B1AZ-3518-A .. Steering Column Bearing Sleeve / Available from Ford.

Too many 1951/79 applications to list.

MSRP: $4.85 / tousleyfordparts.com price: $3.20.
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C6TZ-3518-A .. Lower Steering Column Bearing Sleeve / Obsolete ~ 4 available NOS

Applications: 1966/72 F100 4WD / 1967/72 F250 4WD
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1966 F100 4WD, 1967/75 F100/250 4WD: The lower steering shaft & coupler is the same as is its u-joint (there's only one).

E2HZ-3815-A (replaced C6TZ-3815-B) .. U-Joint / Obsolete ~ Over 185 available NOS as it was also used on 1966/86 C Series Tilt Cabs.