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| Confused...904 vs. 727 spline https://slantsix.org/forum/viewtopic.php?t=43455 |
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| Author: | Big T [ Mon Jan 31, 2011 12:42 pm ] |
| Post subject: | Confused...904 vs. 727 spline |
After looking on our site here ...I found a link provide by one of our members... [url]http://www.technicalvideos.com/what_year_727.phtml On this site I was reviewing and trying to identifying the type of 904 (spare ) transmission I had picked up awhile ago when I picked up a /6 motor from a 68 Dart.. Since I am new to this...My question is this... Did the 904 and 727 share similar splines? Regarding lockup or non-lockup? If you see the info below which is linking pictures from website provided above The 904 (non-lockup style) was built from 1960-1977. Notice how the splines go to the end of the shaft (see Fig. 1 on left). The 904, nonlock-up style, is preferred for performance building. The 904 (lockup style) was built from 1978-1993. This style uses a torque converter with an internal clutch. Notice the machined area where the clutch inside the converter will seal (see Fig. 2 on left). The 727 (non-lockup style) was built from 1962 and on. Notice how the splines go to the end of the shaft (see Fig. 1 on left). The 727, non-lockup style, is preferred for performance building. The A727 (lockup style) was built from 1978-1993. The A727 uses a torque converter with an internal clutch. Notice the machined area where the clutch inside the converter will seal (see Fig. 2 on left). |
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| Author: | bigslant6fan [ Mon Jan 31, 2011 2:41 pm ] |
| Post subject: | , |
There are 3 diferent input splines for the 904. 67 and older course spline,68-up fine spline,and then lock-up.Many tranmission books don't disscuss the course spline because it is so old,and not used for racing because of poor torque converter availibility |
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| Author: | slantzilla [ Mon Jan 31, 2011 2:47 pm ] |
| Post subject: | |
727 has a larger input and output shaft. |
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| Author: | Rug_Trucker [ Mon Jan 31, 2011 4:53 pm ] |
| Post subject: | |
Quote: 727 has a larger input and output shaft.
Output IIRC same as the 4 speed?
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| Author: | Joshie225 [ Mon Jan 31, 2011 5:10 pm ] |
| Post subject: | |
Quote: Quote: 727 has a larger input and output shaft.
Output IIRC same as the 4 speed?Here is info on automatic transmission input splines: http://www.moparts.org/Tech/Archive/auto/7.html |
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