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1979 Pontiac Catalina
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Diagram

Differential
SL SPRING-SM | Differential | Randys

SL SPRING-SM Randys
Differential Locker Rebuild Kit


Vehicle specific

Position

Rear

Note

GM 8.5 in.; Spartan Locker Spring and Pin Kit

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$33.42
Additional lead times may
apply for this item
Item added to cart
ZP PGM8.5O-3-28 | Differential | Randys

ZP PGM8.5O-3-28 Randys
Limited Slip Differentials


Vehicle specific

Position

Rear

Note

8.5 in. 10 Bolt; 28 Spline

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$1485.10
Current price: $1862.19
Additional lead times may
apply for this item
Item added to cart
ZP PGM8.5O-3-31 | Differential | Randys

ZP PGM8.5O-3-31 Randys
Limited Slip Differentials


Vehicle specific

Position

Rear

Note

8.5 in. 10 Bolt; 31 Spline

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$1485.10
Current price: $1862.19
Additional lead times may
apply for this item
Item added to cart
ZP PGM8.5O-3-28 | Differential | USA Standard Gear

ZP PGM8.5O-3-28 USA Standard Gear
Positraction Differential


Vehicle specific

Note

8.5 in. Oldsmobile; 28 Spline;12 Bolt

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$1485.10
Current price: $1862.19
Additional lead times may
apply for this item
Item added to cart

ZP PGM8.5O-3-31 USA Standard Gear
Positraction Differential


Vehicle specific

Position

Front

Note

31 Spline; 8.5 in.; 10 Bolt 8.5 in. 10 Bolt; 31 Spline

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$1485.10
Current price: $1862.19
Additional lead times may
apply for this item
Item added to cart

ZP PGM8.5O-3-31 USA Standard Gear
Positraction Differential


Vehicle specific

Position

Rear

Note

31 Spline; 8.5 in.; 10 Bolt 8.5 in. 10 Bolt; 31 Spline

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$1485.10
Current price: $1862.19
Additional lead times may
apply for this item
Item added to cart
D17011 | Differential | Unitrans

D17011 Unitrans


Vehicle specific

Position

Rear

Note

GM 8.5 in.; Spartan Locker Spring and Pin Kit

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$33.42
Additional lead times may
apply for this item
Item added to cart

D59005 Unitrans


Vehicle specific

Position

Rear

Note

8.5 in. 10 Bolt; 28 Spline

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$1485.10
Current price: $1862.19
Additional lead times may
apply for this item
Item added to cart

D59006 Unitrans


Vehicle specific

Position

Rear

Note

8.5 in. 10 Bolt; 31 Spline

Quantity per vehicle

1

Fits on

  • All vehicle configurations
$1485.10
Current price: $1862.19
Additional lead times may
apply for this item
Item added to cart

YDGGM7.5-3-28-SM Yukon Gear
Dura Grip Positraction


Vehicle specific

Position

Front

Note

7.625 in. 10 Bolt; 28 Spline GM 7.5 in.; 28 Spline~Yukon Dura Grip Positraction; GM 7.5 in. & 7.625 in. Rear; 3.23 & Up Ratios; 28 Spline

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
$896.37
Current price: $1085.46
In stock
Item added to cart

YDGGM8.5-3-28-1 Yukon Gear
Yukon Dura Grip Differential


Vehicle specific

Position

Front

Note

28 Spline; 2.73 And Up GM 8.5 in.; 28 Spline; 2.73 And Up~Yukon Dura Grip Positraction / Limited Slip; GM 8.5 in. Rear; 28 Spline; 2.73 And Up; 1.781 in. Bearing Journal

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
$756.93
Current price: $846.19
In stock
Item added to cart

YDGGM8.5-3-30-1 Yukon Gear
Yukon Dura Grip Differential


Vehicle specific

Position

Front

Note

8.6 in. 10 Bolt; 30 Spline; 2.73 And Up GM 8.5 in.; 30 Spline; 2.73 And Up~Yukon Dura Grip Positraction / Limited Slip; GM 8.5 in. Rear; 30 Spline; 2.73 And Up; 1.781 in. Bearing Journal

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
$761.36
Current price: $846.19
In stock
Item added to cart

YGLGM8.5-3-30 Yukon Gear
Grizzly Locker


Vehicle specific

Position

Front

Note

2.73 Gear Ratio And Up GM 8.5 in.; 2.73 Gear Ratio And Up~GM 8.5 in.; Yukon Grizzly Locker; 2.73 Gear Ratio And Up; 1.78 in. Bearing Journals; Uses LM102949/ LM102911 Carrier Bearings

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
$1580.27
Current price: $1892.98
In stock
Item added to cart

YDGGM7.5-3-26-SM Yukon Gear
Dura Grip Positraction


Vehicle specific

Position

Rear

Note

26 Spline GM 7.5 in.; 26 Spline~Yukon Dura Grip Positraction; GM 7.5 in. Rear; 3.23 & Up Ratios; 26 Spline

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
$896.37
Current price: $1085.46
In stock
Item added to cart

YDGGM7.5-3-28-SM Yukon Gear
Dura Grip Positraction


Vehicle specific

Position

Rear

Note

7.625 in. 10 Bolt; 28 Spline GM 7.5 in.; 28 Spline~Yukon Dura Grip Positraction; GM 7.5 in. & 7.625 in. Rear; 3.23 & Up Ratios; 28 Spline

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
$896.37
Current price: $1085.46
In stock
Item added to cart

YDGGM8.5-3-28-1 Yukon Gear
Yukon Dura Grip Differential


Vehicle specific

Position

Rear

Note

28 Spline; 2.73 And Up GM 8.5 in.; 28 Spline; 2.73 And Up~Yukon Dura Grip Positraction / Limited Slip; GM 8.5 in. Rear; 28 Spline; 2.73 And Up; 1.781 in. Bearing Journal

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
$756.93
Current price: $846.19
In stock
Item added to cart

YDGGM8.5-3-30-1 Yukon Gear
Yukon Dura Grip Differential


Vehicle specific

Position

Rear

Note

8.6 in. 10 Bolt; 30 Spline; 2.73 And Up GM 8.5 in.; 30 Spline; 2.73 And Up~Yukon Dura Grip Positraction / Limited Slip; GM 8.5 in. Rear; 30 Spline; 2.73 And Up; 1.781 in. Bearing Journal

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
$761.36
Current price: $846.19
In stock
Item added to cart

YGLGM8.5-3-30 Yukon Gear
Grizzly Locker


Vehicle specific

Position

Rear

Note

2.73 Gear Ratio And Up GM 8.5 in.; 2.73 Gear Ratio And Up~GM 8.5 in.; Yukon Grizzly Locker; 2.73 Gear Ratio And Up; 1.78 in. Bearing Journals; Uses LM102949/ LM102911 Carrier Bearings

Quantity per vehicle

1

Fits on

  • Only submodels with ...
    • V8   5.7L   -CC   350CID   3.39 Inches   86.0 mm   0  
    • V6   3.8L   3800CC   231CID   3.40 Inches   86.4 mm   0  
    • V8   4.9L   -CC   301CID   3.00 Inches   76.2 mm   0  
    • V8   6.6L   -CC   403CID   3.39 Inches   86.0 mm   0  
    • V8   5.7L   -CC   350CID   3.85 Inches   97.8 mm   0  
$1580.27
Current price: $1892.98
In stock
Item added to cart

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