75 Fan Belts

[Ross F.]

Has anyone else run into this?
I bought a set of dated belts for my 75 roadster with A/C, PS, and AIR.
I bought them from a supplier. But they are from quanta.
They are all too short.
Quanta claims they are the ones listed in the AIM.
I bought a second set from another supplier because they promised perfect fit.
I was sent another set from quanta, same as before. All too short.
I noticed in the judging manual that different belts are listed. All 1/2" longer.
Except the AIR and PS belt. Which are still the same length.
The PS belt is so short that the filler cap is covered by the ALT.
And the AIR pump has no adjustment.
Quanta claims I'm nuts but will supply 74 Big block belts that are longer. But the numbers may not match.
Suggestions?

[Jim T.]

Re: 75 Fan Belts

Have not delt with trying to factory correct belts for my 1970 original owner with air conditioning and power steering. I prefer Gates manufactured belts I buy at my local NAPA auto parts store.

[David L.]

Re: 75 Fan Belts

I do not have a 1975 parts catalog but my June 1979 Corvette Parts Catalog list the following belts for 1975 models w/AC, P/S, and A.I.R.:

fan & alt. :
350 w/C.A.C........9433760.........7/16" X 54"
350 w/ C.A.C.......9433759.........7/16" X 53 1/2"
350 w/A.C...........9433657.........3/8" X 53 1/2"
This is a bit confusing.

P.S.:
350.........9433725..........7/16" X 36"

A.C. compressor:
350..........9433770.........7/16" X 59"
350..........9433725.........7/16" X 36 1/2"

A.I.R. pump
350 w/C.A.C.......9433719........7/16" X 33 1/2"

Dave