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, 300 mm x 14T x 35.2 mm, For Isuzu NLR275 2014-2015, 3.0 Ltr, 4JJ1-TCS, 110kw NLR85, 5 Speed, 9/14-4/15, Kit

PHC Clutch Clutch Kit, PHC Standard, 300 mm x 14T x 35.2 mm, For Isuzu NLR275 2014-2015, 3.0 Ltr, 4JJ1-TCS, 110kw NLR85, 5 Speed, 9/14-4/15, Kit

$579.83

PHC Clutch Clutch Kit, PHC Standard, 275 mm x 10T x 28.0 mm, For Toyota Landcruiser 1972-1980, 3.6 Ltr Diesel, H HJ45, 4/72-7/8, Kit

PHC Clutch Clutch Kit, PHC Standard, 275 mm x 10T x 28.0 mm, For Toyota Landcruiser 1972-1980, 3.6 Ltr Diesel, H HJ45, 4/72-7/8, Kit

$353.76

PHC Clutch Clutch Kit, PHC Standard, 200 mm x 18T x 21.0 mm, For Citroen Berlingo 2002-2003, 1.4 Ltr, TU3JPGN, 57kw 5 Speed, 11/02-10/03, Kit

PHC Clutch Clutch Kit, PHC Standard, 200 mm x 18T x 21.0 mm, For Citroen Berlingo 2002-2003, 1.4 Ltr, TU3JPGN, 57kw 5 Speed, 11/02-10/03, Kit

$361.95

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 280 mm x 10T x 27.5 mm, For Ford Falcon 1970-1972, V8 XY, 11/70-2/72, Single Plate Conversion Kit

PHC Clutch Clutch Kit, PHC Heavy Duty, Upgrade, 280 mm x 10T x 27.5 mm, For Ford Falcon 1970-1972, V8 XY, 11/70-2/72, Single Plate Conversion Kit

$429.42

Mantic Clutch Kit, Stage 2, Performance, 300 mm x 26T x 29.0 mm, HSV Clubsport 5.7 Ltr, GEN III (LS1), 250kw VT, 6 Speed, 1/98-12/02 1998-2002, Kit

Mantic Clutch Kit, Stage 2, Performance, 300 mm x 26T x 29.0 mm, HSV Clubsport 5.7 Ltr, GEN III (LS1), 250kw VT, 6 Speed, 1/98-12/02 1998-2002, Kit

$578.43

PHC Clutch Clutch Kit, PHC Standard, 225 mm x 23T x 26.0 mm, For Mitsubishi Sigma 1980-1982, 2.6 Ltr GH, B/W 5 Speed, 5/80-3/82, Kit

PHC Clutch Clutch Kit, PHC Standard, 225 mm x 23T x 26.0 mm, For Mitsubishi Sigma 1980-1982, 2.6 Ltr GH, B/W 5 Speed, 5/80-3/82, Kit

$295.25