This is a Rear Left 2WD Upper Shock Mount Repair Kit it fits your:
1988-1998 Chevy C/K 1500 Pickup
1988-1998 GMC C/K 1500 Pickup
1988-1998 Chevy C/K 2500 Pickup
1988-1998 GMC C/K 2500 Pickup
1988-1998 Chevy C/K 3500 Pickup
1988-1998 GMC C/K 3500 Pickup
If you need the other side we have it listed as well
Measures about 11"x 8"x 5"
LEFT = DRIVERS SIDE
RIGHT = PASSENGERS SIDE