IDMS Transmission Service IDMS Provides Transmission Service for Allison, Caterpillar, Twin Disc 6500 and Twin Disc 8500 Transmissions Get a Quote ALLISON OFF-HIGHWAY TRANSMISSIONS CATERPILLAR OFF-HIGHWAY TRANSMISSIONS TWIN DISC 6500 TRANS PACKAGE TWIN DISC 6500 TRANSMISSIONS TWIN DISC 8500 TRANSMISSIONS Add Widget Add Widget Add Section