most manufacturers have centered on a torque converter transmission, but some manufacturers still offer a slightly lower cost unit that uses a clutch. As far as I know, the cost of manufacture -vs- long term maintenance is the only factor in choosing a clutch -vs- torque converter. if anyone else has any knowledge of some application that requires a clutch type and can not do the same job with a torque converter tranmission, I know I would like to hear about it.