This is the rear cover for the 80 Pin ECM connector on many GM applications. This is the long rectangular connector.
MAF adapter harness – Holley 2 pin MAT to GM 5 pin MAF
GM TBI Truck ECM Connector Set Red and Blue 93-97
Programmed 12586242 PCM | Engine Computer for 2004 GM Trucks & SUVs | ECM
GM 94060713 Pin; Wheel; Frt 1-42332-112-0 . . .qty 6 . . .NEW . . .
GM 455862 Pin Spring
Genuine GM Push-Pin 11589290