1991 GMC K2500 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
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W/FIXED ANT STEREO CASSETTE(UM6), STEREO W/CLK(UM7), STEREO AM/FM W/CASS and EQLZR(UX1), AM MONO RDO(U63)
1991 GMC K2500 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
W/FIXED ANT STEREO CASSETTE(UM6), STEREO W/CLK(UM7), STEREO AM/FM W/CASS and EQLZR(UX1), AM MONO RDO(U63)