Hi guys. I have a dilemma that I hope someone can help with. We have a 1957? JD 24T baler running a Wisconsin 2 cylinder drive. Dad has been saying for years that it doesn't run at a fast enough RPM which causes stress and pops sheer pins, but I take it easy on the old girl and she was doing okay. About 3 years back, I broke a pin. When I looked at the needles in the lifted position, I noticed one was lower at full lift than the other. I adjusted it LOWER to stop it from hitting the knotter. Ever since then, no broken sheer pins, but it'll miss almost every 3rd or 4th bale. Sometimes it'll miss 3 or 4 in a row and I have to just keep feeding it. The field was brought in yesterday, and I started looking at this issue afterward. There's a noticeable difference between the two needles when looking through the bale chamber using the inspection window on the side. At the park position, I can see the knotter that misses is about 1" lower than the one that doesn't. At full lift, one needle is lower than the other, and the lower one is sliding against the knotter. The other is centered or even high in the travel area. This all makes sense as the arch of the shorter needle is tighter than the arch of the working needle. My guess is a bent needle, but which one? My second guess is a 14T needle on a 24T, but I'm not sure how much they differ. I've always known needles to bend open, but I can't tell which one is right. Is there a measurement that can be done by laying a straight edge across the top of the needle and measuring the distance from the straight edge to the lowest part of the arch to determine which needle is right? I've been looking for a set that doesn't cost and arm and a leg, but the internet is a big world. They come and go before I even find them. Anybody have a needle they could measure or want to sell? Thanks, Mike