Be sure to add me to your favorites list!...............Be sure to add me to your favorites list!............................IF YOU PLAN ON PURCHASING MULTIPLE ITEMS PLEASE USE THE CART SYSTEM, SO WE CAN SHIP THEM TOGETHER........KEEP YOUR CAR GM!............ORIGINAL GM.......................GM REFERENCE NUMBER 16022621 5154...............1984 1985 1986 Corvette C4 ignition spark factory module, used. We ship weekdays only.  Shipping is USPS only, NO EXCEPTIONS. Please email with questions No local pickup. If a problem arises, please email or call before leaving feedback. We are in Stuart Florida. NCRS member since 1983. Thanks for looking. (PB)