Sonnax offers complete GM Powerglide planetary assemblies in a variety of gear set options and configurations to ensure you get the performance you want without overpaying or sacrificing quality. Each comes fully assembled and ready to install.
Track-proven to 2,000 horsepower, Sonnax Premium planetaries are an ideal choice when extra durability is needed at a reasonable cost in demanding applications. 1.80 Ratio Premium planetary assembly kit 28180G-01S features premium-processed sun and pinion gears that are a big step up from standard case-hardened and tempered varieties. A top-quality material combined with a special heat-treating process results in gears with improved grain structure and stability that are tougher and more wear resistant.

Top-quality sun and pinion gears deliver outstanding durability
High-strength output shaft resists twisting and breakage
Bolt-together carrier for ease of service

See chart and specs below to determine if this planetary assembly suits your application, or dial in options here to choose your build.

More From This Category

TCI Vacuum Modulator, Adjustable, GM, Powerglide, Each

TCI Vacuum Modulator, Adjustable, GM, Powerglide, Each

$54.33

View
MANLEY Connecting Rod Pin Bushing, Bronze, .964 in. OD., .908 in. ID., .855 in. Length, Each

MANLEY Connecting Rod Pin Bushing, Bronze, .964 in. OD., .908 in. ID., .855 in. Length, Each

$16.34

View
PHC Clutch Clutch Kit, PHC Standard, 225 mm x 20T x 22.35 mm, Ssangyong Korando 2011-on, 2.0 Ltr TDI, OM671, 129kw C200, 6 Speed, 1/11-, Kit

PHC Clutch Clutch Kit, PHC Standard, 225 mm x 20T x 22.35 mm, Ssangyong Korando 2011-on, 2.0 Ltr TDI, OM671, 129kw C200, 6 Speed, 1/11-, Kit

$311.62

View
Mantic Clutch System, High Performance Multi-Plate, 225 mm x 26T x 29.0 mm, For Chevrolet Corvette 6.2 Ltr, LT1, 339kw C7, 6 Speed, 1/14- 2014, Kit

Mantic Clutch System, High Performance Multi-Plate, 225 mm x 26T x 29.0 mm, For Chevrolet Corvette 6.2 Ltr, LT1, 339kw C7, 6 Speed, 1/14- 2014, Kit

$2,058.60

View
Sonnax Heavy Duty Input Shaft, 4L60-E, 4L65-E, 4L70-E, Each

Sonnax Heavy Duty Input Shaft, 4L60-E, 4L65-E, 4L70-E, Each

$713.34

View
Hurst Shift Knob, Round, Plastic, White, 5-Speed Pattern, Manual Transmission, Each

Hurst Shift Knob, Round, Plastic, White, 5-Speed Pattern, Manual Transmission, Each

$101.99

View