Roto Hydramatic (sometimes spelled Roto Hydra-Matic or Roto-Hydramatic) was an automatic transmission built by General Motors and used in some Oldsmobile...

Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors' Cadillac and Oldsmobile divisions. Introduced in...

developed inside GM alone. All of GM's early automatic transmissions were replaced by variants of the Turbo-Hydramatic by the 1970s. 1940–1967 Hydra-Matic...

version of the British Rail Class 33 locomotive nickname of the GM Roto Hydramatic transmission a sandwich on the menu of Big Boy Restaurants a sandwich on...

three-speed Turbo-Hydramatic automatic transmission with torque converter replaced the three-speed Roto Hydramatic. Along with the transmission and redesigned...

compression ratio. The new three-speed Turbo Hydramatic transmission with torque converter replaced the Roto Hydramatic used since 1961. Also new to the option...

"three-speed four-range" "Roto Hydramatic" automatic transmission replaced the previous four-speed unit for 1961. The new transmission is slimmer and lighter...

extra-cost Hydramatic transmission. The standard three-speed manual and optional Hydramatic transmissions were unchanged from 1963, however, a new GM-built...

Luxe. Transmission options were initially a 3-speed manual (with synchromesh on the top two gears) and the newly introduced 3-speed Roto Hydramatic. Overall...

guards. Transmission offerings through the years included one of two automatics—the two-speed Jetaway (1968) or three-speed Turbo Hydramatic (1968–72)...

the earlier Buick Dual-path and Oldsmobile/Pontiac Roto Hydramatic transmissions. It was offered on GM A platform cars, namely the Buick Skylark, Oldsmobile...

as the Hydramatic Division that designed and built them called them, "Controlled coupling HydraMatic". Oldsmobile used this same transmission and called...

and compression increased from 8.1:1 to 8.3:1. A four speed Hydramatic automatic transmission and faster rear axle rato were designed to keep the 4453 pound...

automatic transmission, a/c, vinyl top). The Cadillac Seville and Chevrolet Nova were manufactured in Iran during the same period. A total of 40,000 GM cars...

a three-speed column change gearbox. A three-speed GM Roto-Hydramatic 240 automatic transmission was an option fitted in the latter EK and EJ series...

bringing automatic transmissions into the mainstream line up, being less expensive than the imported PowerGlide and HydraMatic transmissions that were available...