1988 1989 1990 1991 Chevy GMC C/K 1500 ECM 1227747 ASDU chip for 5.0 5.7 305 350 A/T 4L60 . Used, working. Comes exactly as pictured nothing else included.

These are not universal you need to match the part and chip for it to work as they are engine and transmission specific. By purchasing you confirm you have read and understand.