I'm helping a friend build up a 99-2000 trek 7000 frame that he got cheap (and in excellent shape) from a friend. I've already established that the bike uses a 27.2 seatpost, but the the aluminum in the seat tube is quite thick to the point that no 34.9 seatpost collar I've tried is large enough to fit. Did Treks of this era use a special oversized seat collar? I wouldn't think so, but I'll be damned if I can fit the thing on there, even spreading with a flathead. Any help is appreciated!