Thanks [MENTION=41945]EricS[/MENTION]. The drivetrain works beautifully. I am just a casual rider who enjoys working on old bikes. I need to have enough sense to leave well-enough alone. Bought the bike for $50 and have only added a new saddle, tires, and a seatpost. It rides and shifts smoothly and crisply. I just need to change to trekking bars, Ergon1 bar grips, and move over the Exage Country shifters and brakes. It rides really well now and these additions will put it over the top I feel. The bike was in wonderful shape for an '88. I just need to finish these simple things and then ride the bejeezus out of it. I seem to want to fix something that ain't broke!