Twin fanbelt setup SIIA

[vkjar]

I would like to swap my single belt to a double belt setup. Where does one find the double pulleys for this swap. I cannot seem to find them in the RN catalog. The previous owner installed an aftermarket alternator I think a GM part. Are dual pulleys available for these?

[Terrys]

I know they are available. RN used to have some military engine spare parts and they all had two belts. My 109 had a new one on the alternator when I got the truck, and I am pretty sure the PO got it from RN.

[Bertha]

PA Blanchard in England. Pound is down and the shipping isnt ridiculous since the parts arent that heavy.

[yorker]

dual groove pulleys are pretty common on Delco alt's it should not be hard to find one.