12 Bolt 'O' Type (FULL SIZE CARS 65-76)
 Symmetrical 12 bolt cover |
 U-bolts on yoke |
 FULL SIZE TRAC LOCK SQUARE TAB POSI |
 1/4 cut slugs bolt in axles |
|
Ring Gear Diameter |
9.375 Olds 'O' TYPE REAR |
|
Casting number |
Not IDed yet |
|
Cover Bolt Count |
12 |
|
Ring Gear Bolt
Count |
12 |
|
Ring Gear Bolt Size |
7/16 right hand (early) and Left hand thread (Late) |
|
Axle Spline |
31 bolt in axle |
|
Pinion Spline |
28 (67-70) and 30 (71-76) |
|
Yoke Style |
U Bolt & Nut Universal Joint
retention (reference picture) 1971-1975 round bolt flange |
|
Pinion Diameter |
1.875 |
|
Axle Shaft Diameter |
1.563 press on bearing |
Supported Cars
|
Car |
Year |
|
DELTA 88, ROYALE |
66-76 |
|
OLDS 98 Wagons |
66-76 |
|
Buick 455 CI Electra, Riviera,
Wagons Pontiac 455CI Catalina,
Bonneville, Grandville, Wagons |
1971-1976 |
Rebuild Kit
|
Part |
Part Number |
|
Carrier Bearing |
LM603049 |
|
Carrier Bearing (Race) |
LM603012 |
|
Inner Pinion Bearing |
M804049 |
|
Inner Pinion Bearing (Race) |
M804010 |
|
Outer Pinion Bearing |
M88048 |
|
Outer Pinion Bearing (Race) |
M88010 |
|
Pinion Seal |
2043 |
Mega Axle Bearing Kit
|
Part |
Part Number |
|
Axle Bearing 65-67 SEALED BEARING |
514003P |
|
Axle seal 65-67 INNER TUBE SEAL |
8940S |
|
Axle Bearing 68-70 SEALED BEARING |
88131R |
|
Axle seal 68-70 INNER TUBE SEAL |
8940S |
|
Axle Bearing 71-76 OILED BEARING |
SET 10 |
|
Axle seal 71-76 AXLE MOUNTED SEAL |
2689S |