For 1988-1991 Chevrolet C1500 Auto Trans Downshift Relay Connector SMP 17556YFPT

For 1988-1991 Chevrolet K3500 Auto Trans Downshift Relay Connector SMP 94663QKJR

For 1987-1991 Chevrolet G30 Auto Trans Downshift Relay Connector SMP 46152RVZS

For 1988-1991 Chevrolet K1500 Auto Trans Downshift Relay Connector SMP 47266FKRB

For 1987-1991 Chevrolet G10 Auto Trans Downshift Relay Connector SMP 82771WTXW

For 1987, 1989 GMC R2500 Auto Trans Downshift Relay Connector SMP 33626HZDN

For Chevrolet Blazer Auto Trans Downshift Relay Connector SMP 91142WNHW

93JJ78P Auto Trans Downshift Relay Connector Fits 1987 Chevy R30