1978 GMC C25 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
2
Rear
2-23/32 (in) Inside Diameter x 4-7/16 (in) Outside Diameter with 8 Bolt Holes
1978 GMC C25 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
Rear
2-23/32 (in) Inside Diameter x 4-7/16 (in) Outside Diameter with 8 Bolt Holes