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727 vs 904
https://slantsix.org/forum/viewtopic.php?t=26411
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Author:  cantcatch06 [ Thu Dec 27, 2007 9:37 pm ]
Post subject:  727 vs 904

Other than weight whats the difference in dimensions in the 2 transmissions. Can i substitute a 727 in the place of a 904, and if so how much of a pain is it going to be. Will the linkages line up and is one longer than the other are my main concerns. Also is there a difference in the torque converters?

Author:  Joshie225 [ Thu Dec 27, 2007 11:39 pm ]
Post subject: 

727s for slants aren't nearly as common as the 904. The 904 is lighter, a bit shorter, uses a smaller slip yoke, has less frictional loss and uses a different torque converter. My experience has been that if maintained the 904 will usually last as long as a 225. If you want something heavier duty a slant 904 built with A998 (318) guts is plenty strong. The linkages are the same, BTW.

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