So I got a used 99 2 door tahoe..I have had it for 8 mo's but never taken it on long drives..as its not my DD...I take it out the other day and on I75...get about 20 mins out and it starts to have a bad shake...so I pull over and look to see if I can see any thing...the front passenger side wheel was smoking really bad..so I let it cool off and then take it home "back rd's"..when I get home I pull the wheel off and it looks like the Brake is dragging...so I take the caliper off and ck the sliders..they looked ok so I regressed them anyway..ck the line..it all looked ok...so I took it about again..thinking I had it fixed..about after driving for about 10 mins...same thing again..take it home look it over again...cant see any thing..so I bleed out all 4 sides NEW Clean dot4 and then take it out again...same thing...so next day "today" get a new caliper & rubber line & rebleed out.... every thing looks good and clean...take it out again..same thing again..I am @ a lost with what else it can/might be...thanxs for any help..-Paul