First guess wheel bearing(s). Improper tightening, or, insufficient/improperly maintenanced lubrication. Unfortunately frequently overlooked for service in a timely schedule. Best to replace bearings and races as opposed to chancing just greasing the existing ones.
Could also be dragging/binding or generally fubared brakes, - caliper and/or rotor.
\'96SS SOB: SSRI, Herter Tune, Tri-Y II, SLP SS, 3000 Edge, F/HO bars, METCO extendeds and CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear)
\'96FWB BUW-Butt Ugly White: SS Bars, METCO LCAs, Koni Reds, PowerTrax No-Slip