[m22mike]

The COPO carrier carries the same casting # as the standard 4 series carrier, the actual PN does not appear on the unit.
The clutch pack is not COPO specific. Here is what is. The side gears, spider gears and thrust washers, the springs and spring plates. And the housing is machined for the larger spider gear and thrust washers.
Great unit [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] How many COPO Camaros and Chevelles out there have the good stuff inside, not that many.. [img]<<GRAEMLIN_URL>>/dunno.gif[/img]