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2-Speed V-Drive Hydraulic, 2-Speed VH Hydraulic, General Motors, General Motors, GM Truck & Coach Division, Santa Cruz Metropolitan Transit District, Transit
Please send all postal mail to our PO BOX!
P.O. Box 601105 Sacramento, CA 95860-1105

We used this UtahRails.net page as a reference tells us this about General Motors model numbers such as PD-4501's:
The model number does not tell us about the General Motors powertrain (engine/transmission).

