According to lmc: the rears are zr5 only
The fronts are listed as being the same between the zr5 & the extreme models.
Might make it a little easier for you by looking @ more than 1 truck style.
Hope this helps.
01 Sonoma sls crew cab - 00 Camaro rims, lear cap w/additional led int light, reese hitch, 99 envoy dash outlets, 98 bravada switch plates & hvac knobs.
03 grand am se 3.4 auto sedan - 02 gt ram air induction parts, aftmkt taillights.