Performance aluminum power steering pump pulley, 2 grooves
 
Application:
Fits all GM key way saginaw style power steering pumps
Fits all GM (Chevy, Oldsmobile, Buick, Pontiac, Cadillac) pre 1984 power steering pumps using the keyway style (nut on the front)
Fits all water pump styles (short and long)
For use on gm engines including 265 283 305 327 350 383 400 396 427 454 472 500 502 326 455 389 403 as well as v6 engines 
 
Description:
Diameter is 5 3/4" and the shaft is 5/8" standard
Machined from billet aluminum
These feature deep grooves to prevent belts from slipping
Minor modifications or adjustments maybe needed for this aftermarket item.
No installation instructions
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