[biglin84]

i need to buy a new power steering pump pulley.the sellers give the outside measurement (o.d.) is the measurement taken in the belt groove or the outer edge of the pulley? steve

 

[ChicoElco]

Measure the outside of the shaft with a dial caliper.

 

[Jalapeno]

The outer edge of the pulley.

 

[ccc]

they mean the outside diameter,outer edge to outer edge. the shaft diameter should be all the same

 

[DalTee]

Make sure you get the correct shaft size. Either .625 or.75 I think. Check whether or not it's a key way and if it's a one or two groove pulley. I bought a one groove from summit and needed a two