does anyone know a good place that can install a front wheel bearing assembly on a 93 z28, i know we dont all live in the same place so maybe someone can reccomend a national place

 

That is a vey simple job and most repair shops should be able to handle it. The hub and bearing come as an assembly, which is held on to the steering knucke by 4 bolts.
1) remove front wheel
2) unbolt caliper & place out of the way, do not disconnect hose.
3) remove brake rotor (disk)
4) disconnect antilock brake electrical conector (if you have antilock brakes)
5) unbolt hub assembly & replace (make sure you get the right one, standard or antilock brakes)