Yes, the power steering pulley is a single groove. Th damper pulley is double groove 3/8" belt.marv

Where on earth did you ever find a double pully for the water pump? I assume it would be fairly easy to find a double pulley for the alternator just looking after market, but never saw anything close to that double pulley water pump. Awesome set up. I assume you have a double sheave dampner with a bolt on pully for the power steering?

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

The WP pulley is from a 67 Fairlane with a 390.  The dampener is a double sheave used on the truck engines with a 292. It is bolted on with crank bolt. The PS pulley is a regular PS pulley and is bolted to the dampener pulley with the 2 3/8bolts just as a regular The alternator pulley was the hardest to find, it is from a  Mustang  with a 4 banger and air.

Cool. I just found a double pulley alternator from Powermaster. Jegs has it for $15 and we went over the dimensions. It sounds like a good fit. Ordered it and headed to the bone yards to look for a water pump pulley donar. Thanks!

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

Well there went $10 out the window. First, I did find an exact match that had the correct 3/4" shaft hole and correct pattern for the four mounting bolts. The pulley had two 3/8" grooves that looked like they would line up with the dampner pullys.  Problem being, there was a thrid pulley on the fan side that appeard to run a 1/2" belt. I did not want the extra pulley so I passed that one by. I looked at literally hundreds more and found one that looked like a perfect match on diamter and groove width (3/8"). However, the center hole was not quite 3/4" and the mounting holes would require elongating or drilling in a new location on the pulley. I figured it was something I could do. Wrong.........when I got it drilled out to fit the shaft, it did not line up with the grooves on the dampner. So long story short, if you find one that looks like an exact replacement but has the wrong mounting holes and wrong diamter shaft hole, it may not line up with the grooves. Back to the junk yard..........

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

sounds like you have a truck pump with a 3/4 shaft?   so this may not be of any help

thats correct, the shaft on the water pump is 3/4". Im wondering if any of the reporduction double pulleys would be a bolt on. I will know a little more when I get my double pulley for the alternator. At least if that fits I will be two out of three. I can change the water pump if I have to or machine the hole on the new water pump pulley to 3/4".

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

Marvh,

If I find a double water pump pulley that fits a 67 Ford Fairlane with a 390 are you thinking it will line up with my C3TE dampner? Does your water pump have a 1/2 or 3/4 shaft?

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

Rono, I was lookin at an older post and was wondering if you ordered the MOTA 72001 2 groove water pump pulley from Amazon. They have ten in stock. If so, did it line up with the dampner? Was the 2nd groove on the engine side or the radiator side?

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

this is my work in progress. i'm using 3/8 belts and my water pump shaft is car 5/8 I believe. getting every thing to line up is proving difficult. I look at it one day and it looks ok the next morning it looks out of line. i've made a whole heap of spacers and i'm still not happy.the double groove water pump pulley is C7OE-8509-D from e-bay