99 K3500, Regular cab, long box, single rear wheels I'm rebuilding the frontend on the driver's side.... did the passenger side a few months ago. The passenger side got a new hub as the Timkin was bad... I suspect it overheated several years ago when the caliper was dragging and the rotor got very hot. Once I got it off the truck I could feel that the bearings were bad. I just got the Timkin separated on the driver's side... it feels fine to me. However, it has over 100K miles on it. I already have a new Driveworks hub from Advance Auto... but I could probably return it and get my $70 back. Which would you use? Ideally, I'd get new Timkin hubs but I don't have that kind of money right now.