10 Bolt Cover/ 12 bolt Ring 8.875 & 8.75 Full Size
 |
| Ring Gear Diameter | 8.875 or 8.75 |
| Ring Gear Bolts | 12 (Inspection Cover bolts 10) |
| Ring Gear Bolt Size | 7/16 Left Hand Thread |
| Axle Spline | 31 bolt in (8.875) or 31 & 28 c-lip (8.75) |
| Pinion Spline | 28 |
| Pinion Diameter | 1.875 (8.875) 1.675 (8.75) |
| Axle Shaft Diameter | 1.531 (8.875) 1.40 / 1.618 C-clip (8.75) |
Supported Cars
| Car | Year |
| Bonneville | 65-70 |
| Grand Prix | 65-68 |
| Catalina | 65-70 |
| Executive | 65-70 |
| CHEVY WAGON, DEVILLE, 98, 88, ELECTRA | 77-85 |
| MONTE CARLO, CUTLASS, EL CAMINO HD A-BODY WAGONS | 73-77 |
Rebuild Kit
| Part | Part Number |
| Carrier Bearing | LM603049 |
| Carrier Bearing (Race) | LM603012 |
| Inner Pinion Bearing | M88048 |
| Inner Pinion Bearing (Race) | M88010 |
| Outer Pinion Bearing | M802048 |
| Outer Pinion Bearing (Race) | M802011 |
| Pinion Seal | 2043 |
Mega Axle Bearing Kit
| Part | Part Number |
| Axle Bearing | 88131R |
| Axle Seal | 8940S |