Joined: Jul 2015
Posts: 7,361
Likes: 3,217
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
that's definitely a HT 2 Crankset... it will be the 73mm width bottom bracket too... many HT2 BBs come in a universal 68 or 73 kit, with spacers as needed (not all are needed for all installs, tho!)
the Shimano BB has lasted well, if you're just now needing/thinking of replacing it... you might just consider getting another one.... they're about $20 to $30 US, delivered to your door, or in just about any bike shop too.