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The transmission has a 7.05:1 ratio first gear, which is one of the lowest "granny" gears ever produced in a production transmission. It weighs 135lb, which is 40 pounds less than the SM465 that replaced it. While the construction is dated by modern standards, these are sought after by off-road enthusiasts due to the ruggedness and gear ratios. [1]
Muncie SM420 transmission — 4-speed manual transmission used up to 1967. Very similar to the Muncie SM465 except for small changes to its gear ratios and the location of its reverse gear. Muncie SM465 — 4-speed longitudinal manual transmission used in 1968-1991 Chevrolet 1/2-ton, 3/4-ton, and 1-ton trucks.
The Synchro-mesh 465 or SM465 is a heavy-duty, four-speed manual transmission built by General Motors for use in light and medium duty trucks from 1968 to 1991 at the factory in Muncie, Indiana; it was designed to replace the somewhat similar Muncie SM420 transmission, which had been in production since just after World War II.
All transmissions have a third gear ratio of 1.38:1. However, third and fourth gear are clustered on the counter shaft which was available with two different fourth gear ratios: 1.03:1 or .94:1. Fifth gear is independently interchangeable and available with a .80:1 and .72:1 ratio.
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. ...
The New Venture Gear 3500, commonly called NV3500, is a 5-speed overdrive manual transmission manufactured by New Venture Gear and used by GM and Dodge in compact and full-size light trucks. It can be identified by its two-piece aluminum case with integrated bell housing and top-mounted tower shifter.
In February 2002, General Motors sold its minority 36% stake in the New Venture Gear company to DaimlerChrysler and the Muncie Transmission plant reverted to GM control. [6] GM changed the plant name to "Manual Transmissions of Muncie." The T.W. Warner Muncie plant closed in mid-2006 after a century of operation and the property was turned over ...
Most STD transmissions have a first gear of 3.75 to 4.10:1 for smaller-displacement engines; these so-called 4-cylinder T-5s are rated up to 240 lb⋅ft (330 N⋅m) of input torque. [ 4 ] WC transmissions initially carried the same maximum input torque rating of 265 lb⋅ft (359 N⋅m) until hardened first gears were introduced in approximately ...