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10-23-2011, 10:10 PM | #1 |
Registered User
Join Date: Oct 2011
Location: Las Cruces, New Mexico
Posts: 29
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Help with 4 speed transmission
Hello, everyone!
I am in need of some help identifying the transmission in my truck. The truck is a 1980 GMC C1500 and it has either the 305/350 V8 and a 4-speed manual transmission. According to Wikipedia, it is either the Saginaw SM465 or a New Process overdrive transmission, as these are the only 4-speeds that came in this year/model truck. If it helps, the shift knob has an H pattern for 1-2-3-4 such as: 1-3 2-4-R And from what I can find, the SM465 has a L-1-2-3 pattern, unless the knob was changed. Are there any specific features I can look for on the transmission that will help me identify the model? I appreciate any help that the educated members of this forum can provide. |
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