My 17 year daughter recently bought a '72 F100 with a 390.

There have been a few things that needed fixing on it - battery was dead, carb needed cleaning, filters, etc. The major issue is that the power steering pump keeps throwing belts. I've watched it enough to know the belts twist up just before coming off.

It looks like someone replaced the pump in the not so distant past, but mangled up the pulley. I can find rebuilt pumps all day around here, but no one seems to know where I can find the pulley.

The parts breakout on fordification.com shows the part number for the pump as 3A674 and the pulley as 3A733. I also need the dipstick, 3A006.

Anyone have any suggestions, or thoughts?

 

Basic part numbers only shown in illustrations. The text section of the parts catalog is required to get the complete part number.

Does this truck have A/C and/or dual belt alternator? If not:

C7AZ-3A733-E .. P/S Pump Pulley-Single Sheave-4 5/8" O/A diameter / Marked: 6AA / Obsolete

Applications: 1968/72 F100/350 360/390 without A/C or dual belt alternator / Misc. 1967/72 Ford/Merc Passenger Cars / 1 available NOS
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D6AZ-3A006-B (replaced C7AZ-3A006-C & D1VY-3A006-A) .. P/S Pump Dipstick / Obsolete

Applications: Myriad 1967/77 FoMoCo vehicles (1978 and later is not the same!) / 42 available NOS

Make SURE the rebuilt P/S pump you buy has a STEEL reservoir. 1978: FoMoCo changed the P/S pump, has a PLASTIC reservoir.

 

MAC's antique auto parts has the C7AZ-3A733-E listed or for $62.95 ouch but new..
orich

 

I appreciate the info. This thing definitely doesn't have AC and only has a single belt on the alternator.

Joe

 

The P/S pump pulley has to be pressed off/on. Clueless previous owner was unaware, mangled it to death, prolly beating on it with a hammer. Didn't do the P/S pump any good, either. Wouldn't be surprised if it leaks like a sieve.

The 1964/72 Ford Truck Parts Catalog is available on a CD from hipoparts.com. The basic part numbers you found in the illustration section, came from this catalog. It's the same version that Fordification is using.