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Hurst produced aftermarket replacement manual transmission shifters and other automobile performance enhancing parts. Hurst was also an original equipment manufacturer (OEM) for automakers and provided services or components for numerous muscle car models by American Motors (AMC), Ford, Chrysler, and General Motors.
The police package (9C1) B-body cars featured a First Gear Block Out (FGBO) Plate on the transmission housing to prevent drivetrain damage. The shift point for first to second gear is about 43 MPH (69 km/h) while second to third gear shift point is about 83 MPH (134 km/h) assuming a 3.08:1 differential and a 5,500 RPM engine speed limit.
Both engines were mated to a Turbo Hydra-matic 400 transmission with console-mounted Hurst Dual-Gate shifter. All of the 1972 Hurst/Olds had the black Strato bucket interior with a center console. Special Hurst/Olds Pace Car badging adorned the glove box door and all 1972 Hurst/Olds' were identified with a W-45 Code on the cowl tag.
A three-speed automatic transmission was standard on Le Mans and Luxury Le Mans models while the GTO came with a floor-mounted three-speed with Hurst shifter. Available at extra cost was the three-speed Turbo Hydra-matic with all engines, while a four-speed manual with Hurst shifter was available with the 230 hp (172 kW) 400.
Manual – the driver has to perform each gear change using a manually operated clutch Automatic – once placed in drive (or any other 'automatic' selector position), it automatically selects the gear ratio dependent on engine speed and load
Automated manual transmissions can be semi-automatic or fully-automatic in operation. Several different systems to automate the clutch and/or shifting have been used over the years, but they will generally use one of the following methods of actuation for the clutch and/or shifting: hydraulic or electro-hydraulic actuation, [12] electro-mechanical, [13] pneumatic, [6] [14] [15] electromagnetic ...
It is a stepless, fully-automatic transmission, consisting of a V-shaped drive-belt, and two pulleys, each of two cones, whose effective diameter can be changed so that the "V" belt runs nearer the spindle or nearer the rim, depending on the separation of the cones. These are synchronized so that the belt always remains at the same optimal tension.
This was provided to allow engine braking on downhills or prevent the use of overdrive gears when towing and was typically achieved using positions such as "3", "2", and "1" on the gear selector. An automatic transmission with a manumatic function provides a greater level of control by allowing the driver to request an upshift or downshift at a ...