GM 8.5" & 8.6", 10 Bolt


GM 8.5" Front
GM 8.5" Front
11"
10 Holes, Irregular
Auburn Gear Part Number
542018, High Performance Series
542050, Pro Series - Large bearing hub -
unit includes differential bearings
 
Applications: All GM products with
8.5” & 8.6” ring gear
Ratios: 2.73:1 & Up
Side Gear Spline: 28 Teeth
Model Years: 1971-1988

542018, Bearing Cone:
LM501349
Bearing Cup: LM501314

542050, Bearing Cone:
LM102949
Bearing Cup: LM102911

Special Note:
Bearings provided with 542050, Pro Series Unit
 
 
  
Make/Year 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
Special Note
GM 8.5" & 8.6"
 
Auburn Gear Part Number
542022, High Performance Series
542052, Pro Series - Large bearing hub -
unit includes differential bearings

Applications:
All GM products with
8.5” & 8.6” ring gear
Ratios: 2.73:1 & Up
Side Gear Spline: 30 Teeth
Model Years: 1989-1998

542022, Bearing Cone:
LM501349
Bearing Cup: LM501314

542052, Bearing Cone: LM102949
Bearing Cup: LM102911

Special Note:
Bearings provided with 542052, Pro Series Unit
 
 
GM 8.6" Rear
GM 8.6" Rear
10 5/8"
10 Holes, Irregular
Auburn Gear Part Number
542097, High Performance Series
- 1999 to Present
542052, Pro Series


Applications:
All GM products with
8.5” & 8.6” ring gear.
Ratios: 2.73:1 & Up
Side Gear Spline: 30 Teeth
Model Years: 1999 - Present

542097, Bearing Cone: LM603049
Bearing Cup: LM603012

542052, Bearing Cone: LM603049
Bearing Cup: LM603012

Special Note:
Bearings provided in 542052, however if vehicle is 99 model year or newer, bearings will not be used. Use bearings specified above.
 
 
GM 8.5" Front
GM 8.5" Front
11"
10 Holes, Irregular
ECTED Auburn Gear Part Number
545003
Applications: All GM products with
8.5” & 8.6” ring gear
Ratios: 2.73:1 & Up
Side Gear Spline: 28 Teeth
Model Years: 1971-1988
Bearing Cone: LM102949
Bearing Cup: LM102911
 
 

 


 
Note 

 

 

GM 8.6" Rear
GM 8.6" Rear
10 5/8"
10 Holes, Irregular
Auburn Gear Part Number
545004
Applications: All GM products with
8.5” & 8.6” ring gear
Ratios: 2.73:1 & Up
Side Gear Spline: 30 Teeth
Model Years: 1989-Present
1989 to 1998, Bearing Cone: LM102949 Bearing Cup: LM102911
1999 to Present, Bearing Cone: LM603049 Bearing Cup: LM603012
 
 
 




 



Bearing Not Included Bearings not included unless specifically stated. Applications listed (make & year) are for reference only - always verify axle/ring gear size, ratio to be used and number of axle splines prior to purchase and installation.
PDF Icon PDFPlease refer to the Tire Chart for maximum tire sizes for Auburn Gear traction differential applications.
Every effort has been made to ensure accuracy of the contents of this catalog. However, we assume no responsibility for errors or ommissions.


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