Check the listing for details. HYDRA-MATIC Retiree jacket coat w Patch Toledo Powertrain Transmission GM Chevy. Condition: Used. Listed at 39.99 USD. Here we have an amazing HYDRA-MATIC Retiree UAW LOCAL 14 UNITED AUTO WORKERS UNION jacket coat w Patch Toledo Ohio Powertrain Transmission GM Chevy. The facility was founded in 1916, and has been the site for production of many of GM's Hydra-Matic transmissions since.