Standard Transmissions

What you need to know

March 2015 Tech Corner Levi Perkins

New Venture Gear

Soon Chevrolet also followed suit with its 6.2L and 6.5L engines in the early 90s and replaced the SM465 unit with a transmission made by new venture gear. The NV4500 transmission also was equipped with an overdrive fifth gear and was still a top-load transmission. It had a cast iron case and featured carbon composite synchronizers. This particular model of transmission was also adopted by Dodge in 1994 and replaced the Getrag five-speed. Chrysler had a great relationship with new venture and offered both the NV4500 five-speed and NV5600 six-speed as an option behind its 24-valve Cummins engines from 1998 until 2004. In 2005, Dodge decided to utilize a transmission designed in 2002 for medium-duty trucks. This transmission was commonly known as the G56 and was manufactured by Mercedes. It featured an all-aluminum housing and a very peculiar double “H” gear pattern with reverse to the left instead of to the right of the transmission. Chrysler has used this transmission ever since.

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