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, 275 mm x 21T x 29.0 mm, For Toyota Prado 2003-2004, 4.0 Ltr MPFI, 1GR-FE, 179kw GRJ120, 5 Speed, 3/03-8/04, Kit

PHC Clutch Clutch Kit, PHC Standard, 275 mm x 21T x 29.0 mm, For Toyota Prado 2003-2004, 4.0 Ltr MPFI, 1GR-FE, 179kw GRJ120, 5 Speed, 3/03-8/04, Kit

$628.88

PHC Clutch Clutch Kit, PHC Standard, 350 mm x 14T x 35.0 mm, For Mitsubishi Fuso FK 1985-1988, 6.6 Ltr TDI, 6D14AT FK415, 2/85-12/88, Kit

PHC Clutch Clutch Kit, PHC Standard, 350 mm x 14T x 35.0 mm, For Mitsubishi Fuso FK 1985-1988, 6.6 Ltr TDI, 6D14AT FK415, 2/85-12/88, Kit

$852.59

PHC Clutch Clutch Kit, PHC Standard, 380 mm x 10T x 44.8 mm, MAN 25 Series 1981-on, 11.4 Ltr Turbo, D2566MK 25.321, R/Ranger, 1/81-, Kit

PHC Clutch Clutch Kit, PHC Standard, 380 mm x 10T x 44.8 mm, MAN 25 Series 1981-on, 11.4 Ltr Turbo, D2566MK 25.321, R/Ranger, 1/81-, Kit

$2,648.85

PHC Clutch Clutch Kit, PHC Standard, 215 mm x 10T x 29.0 mm, For Mercedes Benz 190 1982-1983, 2.0 Ltr W201, 12/82-10/83, Kit

PHC Clutch Clutch Kit, PHC Standard, 215 mm x 10T x 29.0 mm, For Mercedes Benz 190 1982-1983, 2.0 Ltr W201, 12/82-10/83, Kit

$182.86

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 26T x 28.7 mm, For Chrysler Crossfire 2003-2008, 3.2 Ltr, 160kw 6 Speed, 8/03-7/08, Kit

PHC Clutch Clutch Kit, PHC Standard, 240 mm x 26T x 28.7 mm, For Chrysler Crossfire 2003-2008, 3.2 Ltr, 160kw 6 Speed, 8/03-7/08, Kit

$942.15

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 225 mm x 21T x 22.2 mm, For Subaru 1600 - 1800 4WD Leone & L Series 1982-1984, 1.8 Ltr, EA81 AF5E,

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 225 mm x 21T x 22.2 mm, For Subaru 1600 - 1800 4WD Leone & L Series 1982-1984, 1.8 Ltr, EA81 AF5E,

$314.88