I have left my junk NV5600 laying out in the snow since I pulled it just to keep reminding me that I DO NOT want to re-install it.
Here are some additional facts on the Fuller transmission. If you have a 4.10 diff, you will need an FSO (O/D) unit, else your max speed will be 55 mph. FSO's are not readily available since they are late model, however the non-OD FS-6406A and FS-8406A have been used since the 1990's. The good news is that the internal shafts and gears are the same as the FSO with the exception of the OD gears. You can convert an FS into an FSO. Here is the info for the conversion.
Need to change the following http://www.roadranger.com/ecm/groups...r_fs-6406a.pdf
item #8 4301477 5TH GEAR-MAINSHAFT
item #6 3315743 DRIVE GEAR-CNTRSHFT
item #7 4301478 5TH GEAR-CNTRSHFT
FSO-6406 parts list http://www.roadranger.com/ecm/groups..._fso-6406a.pdf
item #8 4304543 OD GEAR-MAINSHAFT
item #6 4304541 DRIVE GEAR-CNTRSHFT
item #7 4304542 OD GEAR-CNTRSHFT
With some luck you should be able to find all of the following:
SAE#2 5.9 Cummins flywheel Cover
Flywheel 14" 5.9 Cummins
Clutch 14" (shaft could be 1-1/2" to 2" depending on trans)
SAE #2 Fuller Bellhousing
FSO-6406A or FSO-8406A 6 speed Fuller (or convert an FS to FSO)
Clutch actuation needs to be worked out--the FS-6406A has available a "push" clutch input shaft similar to that on the NV5600. This is rare as most are "pull" type. Clutch lever rework required.
For those with the married T-case, a divorce is in order unless someone can help locate the adapter being used on the 2008 Excusion where the FSO/married T-case is used. Called Fuller tech support and they say this is a "non-Fuller" item.
Had to set the conversion aside for a while as I've had to install a new track on my Case 1155E and now replacing the DT466 on my loader. Weather isn't much help either.