Hi guys, I've a 4 speed ratchet top that's very noisy in 1st, 2nd & 3rd while cruising at low speeds, sounds like a bad whining noise. In 4th it's silent and smooth at any speed. While under full acceleration in the other gears they also seem silent, it's only while cruising in the lower gears. It's been like it for years and apart from that it sounds and works fine. Any ideas on how to fix it would be appreciated.