1976 GMC K25 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
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4 Speed Manual Transmission Mfr Code: SM465/M20 Type Transmission
1976 GMC K25 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
4 Speed Manual Transmission Mfr Code: SM465/M20 Type Transmission
1976 GMC K25 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
1
3 Speed Manual Transmission Mfr Code: SM326/M15 Type Transmission
1976 GMC K25 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
3 Speed Manual Transmission Mfr Code: SM326/M15 Type Transmission