K 2500 Truck 4WD V8-379 6.2L DSL (1988)
Retainer ("Blow-Out-Clip")
15612855
Rivets (2 each side) .125 x .063 x .125
The new door glass went into production beginning with the following VIN breakpoints:
GMC
JE514159
GMC
J1526010
GMC
JZ513360