1987 Chevrolet R20 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.3L V6 Gas OHV
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HEX 7/16-14X1 1/4 CL 2A HEX 7/16-14 X 1 1/4
1987 Chevrolet R20 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.3L V6 Gas OHV
HEX 7/16-14X1 1/4 CL 2A HEX 7/16-14 X 1 1/4