I just picked up a 25" Schwinn Voyageur 11.8 frameset, rusty, scraped, with some spraypaint on it, but in sound structural condition and soon to become my new commuter.

The serial number is 81 04 16076, which I assume makes it a 1981. I found catalog scans for the Voyageur from '80, '81, and '82 on the Schwinn forums, but it looked as if the 1981 and the 1982 scan were identical and I wasn't certain if that was a mistake or they just looked very similar. None of the catalog scans had full chrome forks, just half chrome, and my fork is full chrome so I'm not sure how that affects dating. It came with an Altus LX front derailer, Altus LX DT shifters, and an SR stem with Sakae Road Champion bars and Dia Compe levers. It also had an SR Laprade seatpost, 26.4, that was in there with a shim, a Dia Compe G rear brake, and a Campy rear derailler.

Is it a replacement fork? Which of these components were original? Is it for sure a 1981? And does it take a 26.8 seatpost? I'd post pics if I had a camera.