General Motors transmissions
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===TH400 (3L80), TH375C, TH475 (3L80HD)=== | ===TH400 (3L80), TH375C, TH475 (3L80HD)=== | ||
| − | 1987-up 3L80HD is the | + | 1987-up 3L80HD is the heavy duty version of the TH400 found in light trucks. It has a 27 spline output shaft and is 34.5" long overall in the 2WD version. 'HD' is cast into the bellhousing in medium size letters. The TH400 transmission was used between 1964-1990. 1987 was the year GM transmissions began using the alphanumeric designations. |
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| + | [[File:Th400SPpan.jpg|right|260px]]<br style="clear:both"/> | ||
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===Switch Pitch=== | ===Switch Pitch=== | ||
Switch Pitch (SP) TH400 transmissions were available from 1965-'67 in full size BOCad cars. | Switch Pitch (SP) TH400 transmissions were available from 1965-'67 in full size BOCad cars. | ||
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