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 3,000 HP, Sonnax Extreme planetaries are the finest quality Powerglide planetary assemblies in the world. From carrier and output shaft to gears and thrust washers, every component is refined for maximum durability in the most demanding applications. The ring gears are even pre-drilled for the Sonnax stabilizer system to prevent vibration and broken reverse friction plates. Extreme gear sets feature Sonnax premium sun and pinion gears that also undergo the same advanced processing used in Formula 1™, NASCAR® and other high-end professional racing circuits.
1.65 Ratio Extreme planetary assembly kit 28165G-06 is based off the innovative Sonnax 1.58 ratio architecture fitted with 1.80 style 12DP gears. This is the lowest numerical ratio 12DP gear set for the Powerglide that does not rely on troublesome stepped or timed pinion gears.

Direct replacement, requires no special assembly or case modification
Top-quality sun and pinion gears undergo additional advanced processing for unmatched durability
Extreme strength output shaft delivers unrivaled performance and reliability
Compatible with the Sonnax big input shaft system to handle the most extreme horsepower
Includes high-capacity reverse clutch assembly
24-Tooth billet drum flange designed to work exclusively with Sonnax clutch drums
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

PHC Clutch Clutch Kit, PHC Standard, 255 mm x 23T x 26.0 mm, For Holden Commodore 2010-2013, 3.6 Ltr SIDI, 210kw VE Series II, 6 Speed, 9/10-4/13, Kit

PHC Clutch Clutch Kit, PHC Standard, 255 mm x 23T x 26.0 mm, For Holden Commodore 2010-2013, 3.6 Ltr SIDI, 210kw VE Series II, 6 Speed, 9/10-4/13, Kit

$1,784.57

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 200 mm x 21T x 29.0 mm, For Toyota Corona 1970-1974, 1.5 Ltr, 2R RT80, 1/70-12/74, Kit

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 200 mm x 21T x 29.0 mm, For Toyota Corona 1970-1974, 1.5 Ltr, 2R RT80, 1/70-12/74, Kit

$77.34

PHC Clutch Clutch Kit, PHC Standard, 228 mm x 14T x 25.0 mm, For Saab 9-3 1998-2003, 2.0 Ltr ICT, B204L, 136kw 4/98-7/03, Kit

PHC Clutch Clutch Kit, PHC Standard, 228 mm x 14T x 25.0 mm, For Saab 9-3 1998-2003, 2.0 Ltr ICT, B204L, 136kw 4/98-7/03, Kit

$377.58

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 10T x 29.0 mm, For BMW 330 2000-2003, 3.0 Ltr MPFI, M54306S3, 170kw 330Ci E46, 6 Speed Sequential, 6/00-

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 10T x 29.0 mm, For BMW 330 2000-2003, 3.0 Ltr MPFI, M54306S3, 170kw 330Ci E46, 6 Speed Sequential, 6/00-

$235.63