So I'm looking to replace the rusty but trusty HJ60 with a 87 BJ71. I got the guy to show me how the winch worked but I hear rythmic clanking sound from the winch as it turns on each revolution. I put my hand on the pto final drive gear case and feel the tapping in the case on each revolution, almost like there is a bent shaft. The winch did retrieve in 1st gear but sounded noisy. Having no experice with these so I thought i would ask if this loud noise is usual from a pto. Arent they genrally smooth? The truck only has 125000km on it a little bit of surface rust, but just wondering about the winch. Thanks in advance