1979 GMC C3500 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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Rear
FSGR Inside Diameter 1.830in with Dana 70 Axle
1979 GMC C3500 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
Rear
FSGR Inside Diameter 1.830in with Dana 70 Axle