Wheel Cylinder Push rods needed

["Jerry Whitteridge" <jrwhitt@domain.elided>]

Just pulled my Drivers rear wheel and hub to find out what was making
the grinding noise and found that the brake wheel cylinder had dropped
a push rod and it had wedged between the pad and the drum. It now a
shadow of its former self due to the grinding. Went down to Chief Auto
Parts as they are open late and tried to get a new one. They don't even
list the part. 

Any ideas where I can get a replacement locally or do I need to hit up
the junkyards aor the IH specialists ?

Thanks  
Jerry Whitteridge
jrwhitt@domain.elided
91 Jeep Wrangler
79 Scout II