Power Steering Noise

70 Buster 340 said
Kevlar covered mower deck belt in the same length might stop the noise but the pulleys must be in alignment first.
There is an small block 'anti-squeal' pulley shim kit on ebay.

Thanks but I don't think it will solve the issue. This set-up was good for the past 10 years. I believe something has worn and causing this.