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Sonnax #7 Low/Reverse Checkball Seat, GM 4L80E, 4L85E Bag 5

Sonnax #7 Low/Reverse Checkball Seat, GM 4L80E, 4L85E Bag 5

$34.16

Sonnax 1-2 Accumulator Piston Cover Kit, GM, Th350, Th350C, Each

Sonnax 1-2 Accumulator Piston Cover Kit, GM, Th350, Th350C, Each

$58.91

Sonnax 1-3-5-6-7 Accumulator Piston Kit, GM, 8L45, 8L90, Each

Sonnax 1-3-5-6-7 Accumulator Piston Kit, GM, 8L45, 8L90, Each

$37.05

Sonnax 1.58 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.58 Rat Big Shaft, Each

Sonnax 1.58 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.58 Rat Big Shaft, Each

$759.65

Sonnax 1.58 Ratio Extreme Gear Set, GM, Powerglide 1.58 Ratio, Each

Sonnax 1.58 Ratio Extreme Gear Set, GM, Powerglide 1.58 Ratio, Each

$3,438.82

Sonnax 1.58 Ratio Extreme Planetary Assembly Kit, Powerglide 1.58 Ratio, Each

Sonnax 1.58 Ratio Extreme Planetary Assembly Kit, Powerglide 1.58 Ratio, Each

$4,578.05

Sonnax 1.58 Ratio Extreme Planetary Assembly Kit, Powerglide 1.58 Ratio, Each

Sonnax 1.58 Ratio Extreme Planetary Assembly Kit, Powerglide 1.58 Ratio, Each

$5,915.28

Sonnax 1.58 Ratio Extreme Planetary Assembly Kit, Powerglide 1.58 Ratio, Each

Sonnax 1.58 Ratio Extreme Planetary Assembly Kit, Powerglide 1.58 Ratio, Each

$5,987.53

Sonnax 1.65 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.65 Rat Big Shaft, Each

Sonnax 1.65 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.65 Rat Big Shaft, Each

$753.11

Sonnax 1.65 Ratio Extreme Gear Set, GM, Powerglide 1.65 Ratio, Each

Sonnax 1.65 Ratio Extreme Gear Set, GM, Powerglide 1.65 Ratio, Each

$3,153.34

Sonnax 1.65 Ratio Extreme Planetary Assembly Kit, Powerglide 1.65 Ratio, Each

Sonnax 1.65 Ratio Extreme Planetary Assembly Kit, Powerglide 1.65 Ratio, Each

$5,598.95

Sonnax 1.65 Ratio Extreme Planetary Assembly Kit, Powerglide 1.65 Ratio, Each

Sonnax 1.65 Ratio Extreme Planetary Assembly Kit, Powerglide 1.65 Ratio, Each

$5,987.53

Sonnax 1.65 Ratio Extreme Planetary Assembly Kit, Powerglide 1.65 Ratio, Each

Sonnax 1.65 Ratio Extreme Planetary Assembly Kit, Powerglide 1.65 Ratio, Each

$4,468.57

Sonnax 1.69 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.69 Rat Big Shaft, Each

Sonnax 1.69 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.69 Rat Big Shaft, Each

$726.61

Sonnax 1.69 Ratio Extreme Gear Set, GM, Powerglide 1.69 Ratio, Each

Sonnax 1.69 Ratio Extreme Gear Set, GM, Powerglide 1.69 Ratio, Each

$2,109.46

Sonnax 1.69 Ratio Extreme Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

Sonnax 1.69 Ratio Extreme Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

$3,098.86

Sonnax 1.69 Ratio Extreme Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

Sonnax 1.69 Ratio Extreme Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

$3,554.16

Sonnax 1.69 Ratio Extreme Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

Sonnax 1.69 Ratio Extreme Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

$2,186.27

Sonnax 1.69 Ratio Premium Gear Set, GM, Powerglide 1.69 Ratio, Each

Sonnax 1.69 Ratio Premium Gear Set, GM, Powerglide 1.69 Ratio, Each

$1,535.68

Sonnax 1.69 Ratio Premium Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

Sonnax 1.69 Ratio Premium Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

$2,296.96

Sonnax 1.69 Ratio Premium Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

Sonnax 1.69 Ratio Premium Planetary Assembly Kit, Powerglide 1.69 Ratio, Each

$2,908.49

Sonnax 1.80 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.80 Big Shaft, Each

Sonnax 1.80 Ratio Big Shaft Rear Sun Gear Kit, GM, Powerglide 1.80 Big Shaft, Each

$717.23

Performance Transmission Parts & Accessories

Get maximum power transfer and reliable shifting with our comprehensive range of transmission components. From street-driven vehicles to dedicated race cars, we stock quality parts from leading brands to suit your performance needs.

Complete Transmission Solutions

Level up your drivetrain with our selection of performance transmissions. Whether you need a stronger gearbox for street use or a full-race unit, we offer options to handle serious horsepower. From valve bodies to transmission pans, we stock the complete range of components needed for a reliable transmission build.

Clutch & Flywheel Packages

Choose from our range of clutches designed to provide consistent power transfer under demanding conditions. Pair these with our lightweight flywheels to improve engine response and reduce rotating mass. We stock options for both street and competition use.

Shifter & Control Components

Get positive gear selection with our shifters and parts. From short throw shifters to racing sequential units, we have options to suit your driving style. Complete your build with our selection of gear cables, torque converters and transmission catch cans.

Choosing Your Components

When selecting transmission components, consider:

- Vehicle power output

- Intended use (street/strip/race)

- Driving style

- Gearing requirements

- Shift response needs

Check individual product listings for detailed specifications and compatibility information.