OK, I'm sold. I did a little more searching on the web and only found good things about timken bearings. I am going to get the, hub assembly from my local parts store tomorrow and see if they live up to what they told me over the phone about having a life time warranty on the hub assembly. The only other problem I found out while searching around was the torque specs for the drive axle nut vary. 103 ft lbs to 180 ft lbs. I have the service manual published by north american operations/ general motors corp. for 1999 s/t truck. It states to torque it to 130 ft lbs, but I read in some forums that the dealers are torquing it at 180 ft lbs. I'm still searching for answers on that. Thanks for the replies. Tom