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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.
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 ...
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
It was backed by Muncie manual four-speed transission with a new-for-69 standard Hurst shifter and connected to a 12-bolt rear axle with standard 3.73 gears. The 302 featured 11:1 compression, forged pistons, forged steel crankshaft and connecting rods, solid lifters, and Holley carburetor on a dual-plane intake manifold. A dual four-barrel ...
Much of the difficulty in staging a "clean" 2-3 or 3-2 shift in any cast-iron Hydramatic was the changing elasticity of the governing springs in the valve bodies. Even ambient temperature would affect this variable, so that a Hydramatic that would shift perfectly on a summer's day would usually exhibit 2-3 "flare" when cold.
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.
An automated manual transmission may include a fully automatic mode where the driver does not need to change gears at all. [24] These transmissions can be described as a standard manual transmission with an automated clutch and automated gear shift control, allowing them to operate in the same manner as traditional automatic transmissions.