Looking for heavy-duty manual transmission for F550 5.9 swap in

[Coalsmoke]

Hey guys, I'm looking at the logistics of buying an 1999-2003 F550 and putting in a P7100 fed 5. 9. The problem that I am having is trying to track down a better known manual transmission suitable for the class 5-6 range of trucks that will bolt up to the Cummins 5. 9. The NV5600 is too light duty according to its ratings for a F550. What else is out there? I figured someone else might know more about what was used behind the 5. 9 in some of its larger applications like buses or small straight trucks.



thanks as usual

 

[NIsaacs]

The best heavy duty transmission, bar none, is an Eaton twin countershaft roadranger all speed ranges. This will require an sae#2 belhousing, they are big and may need a small body lift. Keep in mind the 550 Ford uses low ratio axle gears, 4. 88-5. 13 so an overdrive unit (not direct) would be needed. I would think the RTO6610 would be a good choice w/14" clutch.





"NICK"

 

[ezcurra]

Spicer 3053B or 3053A? These came in Kaiser M35's.

 

[DVolk]

transmission for F550 5.9 swap

Go down to any place that has medium duty trucks with the 5. 9



the pete 330's have cummins , so does the kw 300's



as well as the freightliner buisness class



or you can check out fords F650's offers cummins



some opf the big rental yards have box vans or small dumps with cummins power

 

[Coalsmoke]

Thanks guys for the input and suggestions. I'll loook into them and see what I come up with. Thanks again.