Correct size fanbelts for 71 Charger

[71 Bee Man]

Hi guys,

sorry if this is in the wrong section.

I recently imported a 71 Superbee with A/C and was hoping someone could give me the correct size belts needed to run the A/C and alternator.

Mine are slipping like you wouldn't believe, and whilst they look good, I'm going to replace them but want to make sure the correct belts are on to begin with.

The ones at the moment are 11A1525.

Can anyone confirm that size ?

Peter