dirtfarmer163 Posted February 14, 2010 Share Posted February 14, 2010 I need y'all's help on choosing a tranmission. I have a 57 IH single axle that had a BD308 gas that i have replaced with a 5.9 cummins since the 2 engines had the same block size. The truck has a 6.88 rear that i can't find a faster gear set for, so i was thinkin of using a TRTL 720 or a TRQ 720. So now for the questionswhat bell housing to these trannys use and will i be able to bolt them to a 5.9???how hard is it gonna be to find one????are these tranys one piece like the duplex?? or is these a better more avalable tranny that finishes in the .6-.7 to 1 area???Sorry guy i know its going in a IH but this is the only way i can think of to get some speed out of the lil truck, and i don't realy wanna mess with a short shaft between boxes. i will mainy be using it to pull gooseneck trailers and the most it will ever see is maybe 15000 pound on the deck. its just gonna be a play toy but i want it usable also. thanx ahead of time for any info y'all can share matt Quote Link to comment Share on other sites More sharing options...
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