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| 904 transmission street/strip https://slantsix.org/forum/viewtopic.php?t=56895 |
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| Author: | MOUSETRAP [ Sat Jan 10, 2015 6:39 pm ] |
| Post subject: | 904 transmission street/strip |
So with a street / strip 904 trans , supercharged 63 wagon engine is older large dia crank . Lock up or non lock up ? What year trans should I look for ? And with 27" rear tires and 3.64 or 3.70 gears what would you recomend for torque converter size ? |
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| Author: | Doctor Dodge [ Sat Jan 10, 2015 7:03 pm ] |
| Post subject: | |
Earlier SL6 cranks have the smaller converter pilot hole... not the "large diameter" so you need to confirm what crank pilot size you have. ( a 63 would have come from the factory with the small pilot) In general, a non lock-up is better for a performance set-up. Common Mopar rear end gear ratios are: 2.93 / 2.94 3.21 / 3.23 3.55 3.73 3.91 4.10 If the transmission has a 1 to 1 final drive then a 3.23 or a 2.94 are good choices. DD |
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| Author: | MOUSETRAP [ Sat Jan 10, 2015 7:51 pm ] |
| Post subject: | |
Thanks yes I ment not original engine newer with larger dia hole . As for rear end I have to confess I am using a ford 9" .. |
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| Author: | Doctor Dodge [ Sun Jan 11, 2015 8:38 am ] |
| Post subject: | |
Quote: Thanks
Good info...yes I ment not original engine newer with larger dia hole . As for rear end I have to confess I am using a ford 9" .. It is nice that you have the later "large pilot" crank, that opens-up more options for transmissions & converters. DD |
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| Author: | MOUSETRAP [ Mon Jan 12, 2015 5:01 am ] |
| Post subject: | |
I am going to look at a /6 904 transmition he thinks is a 1967 with no converter all other shields are there and it's a great core if it's the large pilot non lock up.. This is my understanding to ID a 904 trans that's sitting on the garage floor no vehicle to help. ID just a craigslist / swap meet sale one stranger to another ... Input shaft spline count 18 splines it's for the early small crank pilot hole ? 27 splines non lock up large newer pilot hole 26 splines lock up 1978 and end of shaft has a tip that's smooth no splines Is there any other ways to id that I can do on the spot thanks |
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| Author: | MOUSETRAP [ Mon Jan 12, 2015 11:22 am ] |
| Post subject: | |
Converter size "RPM's" ????? 1963 wagon 70% street 30% drag , rear gear 3.33 ,3.40 , 904 trans trans go2 , supercharged /6 with 480. To 500 lift cam , 27" rear tires Just lookin for opinions on size and brand exact cam to be chosen before converter is .. Thanks all 
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