Sonnax extreme duty forward clutch hub kit 34322-02K is manufactured from forged 4140 steel and features nitrited and case-hardened splines to eliminate spline wear in extreme applications in GM TH400, TH425, 4L80-E and 4L85-E units. Kit includes a bearing between hub and direct clutch housing. The case-hardening at bearing surfaces is removed to make further modifications easier. This forward clutch hub and bearing combination shifts the support of the forward clutch hub from the main shaft to the direct housing and sun gear shaft.
Compared to OE or other replacement forward clutch hubs, Sonnax extreme duty forward clutch hub kit 34322-02K has an additional .025” thickness designed-in to reduce endplay and provide further endplay adjustment options. No machining is required for typical installation.
Hub outer spline length is increased by .055" to allow additional clutch with shortened piston. This added length does not interfere with normal piston travel and can be used with any piston without modifications.

Eliminates spline wear in extreme power and offroad applications
Simple installation adds bearing and reduces unit endplay
Easily modified for addition of second bearing

More From This Category

PHC Clutch Clutch Kit, PHC Standard, 225 mm x 20T x 22.4 mm, For Hyundai Santa Fe 2001-2005, 2.7 Ltr, G6BA, 138kw SM, 2/01-10/05, Kit

PHC Clutch Clutch Kit, PHC Standard, 225 mm x 20T x 22.4 mm, For Hyundai Santa Fe 2001-2005, 2.7 Ltr, G6BA, 138kw SM, 2/01-10/05, Kit

$1,012.96

PHC Clutch Clutch Kit, PHC Standard, 275 mm x 14T x 32.4 mm, For Toyota Coaster 1993-1995, 4.2 Ltr Diesel, 1HZ Bus, HDB50, 9/93-4/95, Kit

PHC Clutch Clutch Kit, PHC Standard, 275 mm x 14T x 32.4 mm, For Toyota Coaster 1993-1995, 4.2 Ltr Diesel, 1HZ Bus, HDB50, 9/93-4/95, Kit

$323.77

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 10T x 35.0 mm, For BMW M3 2004-2005, 3.2 Ltr, S54326S4, 252kw E46, 6 Speed, 2/04-12/05, Kit

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 10T x 35.0 mm, For BMW M3 2004-2005, 3.2 Ltr, S54326S4, 252kw E46, 6 Speed, 2/04-12/05, Kit

$2,467.00

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 23T x 24.2 mm, For Audi S3 1999-2002, 1.8 Ltr Turbo, APY, 154kw 3/99-4/02, Kit

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 23T x 24.2 mm, For Audi S3 1999-2002, 1.8 Ltr Turbo, APY, 154kw 3/99-4/02, Kit

$397.50

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 200 mm x 24T x 25.4 mm, For Nissan 2000 1967-1970, SR311, 1/67-12/7, Kit

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 200 mm x 24T x 25.4 mm, For Nissan 2000 1967-1970, SR311, 1/67-12/7, Kit

$376.10

PHC Clutch Clutch Kit, PHC Standard, 215 mm x 10T x 29.0 mm, For Mercedes Benz 220 1968-1977, 2.2 Ltr Diesel, OM615.912, 44kw W115, 1/68-1/77, Kit

PHC Clutch Clutch Kit, PHC Standard, 215 mm x 10T x 29.0 mm, For Mercedes Benz 220 1968-1977, 2.2 Ltr Diesel, OM615.912, 44kw W115, 1/68-1/77, Kit

$481.79