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Spicer 5-speed manual Spicer 6+1 manual Eaton-Fuller 6-speed manual Allison AT545 automatic Allison MT643 automatic Allison A2000 automatic Navistar DT408 1994-1995 408 cu in (6.7 L) I6 turbodiesel Navistar DTA466 1989-1994 466 cu in (7.6 L) I6 turbodiesel (aftercooled) Navistar DT466E: 1994-2004 Direct injection (electronic/HEUI) IHC 7.3L IDI
Crawl ratio is a term used in the automotive world to describe the highest gear ratio that a vehicle is capable of. Note that gear ratio, also known as speed ratio, of a gear train is defined as the ratio of the angular velocity of the input gear to the angular velocity of the output gear, and thus a higher gear ratio implies a larger speed reduction, i.e. the input speed is reduced more at ...
8-speed PowerLine Model Gener-ation Version Pro-duction Period Engine Orien-tation Gear Ratios [a] Layout Cou-pling Control 1st Top Count [b] Span [c] Step [d] Center [e] Power Flow [f] Gear-sets [g] Brakes Clutch-es 8AP 600 T [h] 600 N⋅m (443 lb⋅ft) 2017 – Present Longitudinal: 4.8889 0.6389 8 7.6522 1.3374 1.7673 P & S 4 2 3 Torque ...
This means the output shaft rotates at the same speed as the selected gear, thus determining the gear ratio of the transmission. [16] The dog clutch is a sliding selector mechanism that sits around the output shaft. It has teeth to fit into the splines on the shaft, forcing that shaft to rotate at the same speed as the gear hub. However, the ...
There is therefore one specific gear ratio at which the car can achieve its maximum speed: the one that matches that engine speed with that travel speed. [1] At travel speeds below this maximum, there is a range of gear ratios that can match engine power to air resistance, and the most fuel efficient is the one that results in the lowest engine ...
The designation of wide versus close ratio affected the lowest gear ratio; [7] for example, the four-speed Muncie transmissions offered in General Motors performance vehicles included the M20 "wide ratio" transmission, which had a first gear ratio of 2.52 or 2.56:1, while the M21 and M22 "close ratio" transmissions had a first gear ratio of 2. ...
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 ...
A new "Generation 4" 1000 was introduced in 2005 that added a 6th gear at the very top of the ratio ladder, making it a double-overdrive. For the 2006 model year, manual gear selection was introduced. This feature gives the driver greater control over the transmission, enhancing operation when engine braking or less frequent shifting is desired.