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Sonnax Premium Planetary Assemblies

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Sonnax premium planetary assemblies are available in various configurations to meet different build requirements. The output shaft is available in the OEM length or short length, and the billet-machined drum flange in 12-tooth or 24-tooth. They are a big step up from standard case-hardened and tempered gears. Sonnax's top-quality racing gear material (SAE9310), combined with a freeze-tempering process (-150 degrees F), results in gears with improved grain structure and stability--tougher and more resistant to wear. Sonnax premium planetary sets are fully assembled and ready to install.

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Sonnax Premium Planetary Assemblies 28180G-01

Sonnax Premium Planetary Assemblies 28180G-01

Sonnax Premium Planetary Assemblies 28180G-01

Automatic Transmission Gears, Premium, Planetary Type, Steel, 1.80:1 First Gear Ratio, Long Output Shaft, GM, Powerglide, Kit

Part Number: SOX-28180G-01

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sonnax Premium Planetary Assemblies 28180G-01S

Sonnax Premium Planetary Assemblies 28180G-01S

Sonnax Premium Planetary Assemblies 28180G-01S

Automatic Transmission Gears, Premium, Planetary Type, Steel, 1.80:1 First Gear Ratio, Short Output Shaft, GM, Powerglide, Kit

Part Number: SOX-28180G-01S

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sonnax Premium Planetary Assemblies 180S-K

Sonnax Premium Planetary Assemblies 180S-K

Sonnax Premium Planetary Assemblies 180S-K

GEARSET-COMPLETE (1.80 RATIO)

Part Number: SOX-180S-K

Not Yet Reviewed

Estimated Ship Date: Oct 23, 2025 if ordered today

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Estimated Ship Date: Oct 23, 2025 if ordered today

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