Advance Adapters offers the Atlas 4SP with the option for either a cable shift or an electric shift unit. Choosing the bulletproof aspects of the cable shift option necessitates this bracket on top of the transfer case to anchor one end of the shifter cable. The brackets only add 3/16 inch of depth to the top of the 'case and then only if the transfer case is perfectly flat. At the angle we used, it fit easily into the existing space. | 
The fully assembled transfer case and shifter assembly is ready to lift into place. Note the high-clearance shifter bracket on top of the 'case. The lever end of the shifter assembly is just as simple and bulletproof. | 
The fully assembled transfer case and shifter assembly is ready to lift into place. Note the high-clearance shifter bracket on top of the 'case. The lever end of the shifter assembly is just as simple and bulletproof. |
Our one-off mounting arrangement utilized a custom bracket that bolts to some existing tapped bosses on the transmission housing. The shifter assembly then bolts to the brackets and extends up through the sheetmetal of the tunnel. We had to pay special attention to clearance between the shift cable and the twin-stick mechanism on the transfer case. | 
The standard approach for the planetary shift mechanism mounting is to sandwich the sheetmetal between a provided plate and the top of the lever housing. With the size of the NV4500 transmission in this application, flat sheetmetal with clearance underneath is hard to come by. We whipped up a bracket that bolts to the side of the transmission and lets the shift lever protrude through the tunnel enough to actuate the mechanism. | 
From the topside of the sheetmetal, the new planetary unit shifter is the only evidence that we now have the opportunity to double our choice of forward gear possibilities and have more than double the gear reduction when necessary! |
Off Again Auto offers a 1350 CV yoke and centering assembly that enables a cleaner and more compact configuration than that of the typical flange attachment method. The new combination is essentially the same configuration as the common 1310 assembly upsized to accommodate the much beefier 1350 U-joints. | 
The new output yoke on the left is much more compact than the typical driveshaft flange in common use on the right. The new yoke also provides plenty of high-angle clearance through its greater depth. | 
The compact 1350 CV centering assembly used with the new yoke on the left and the much larger centering assembly on the right that is typically used for attaching to the common flange arrangement highlights the compactness and simplicity of the new combination. |
Neat, clean, and compact, but utilizing the full strength of the 1350 CV and U-joints, the new offering from Off Again Auto's driveshaft shop is an excellent upgrade for the new driveshaft. | 
Nestled in the same location as its older sibling, the Atlas 4SP required only the installation of the planetary assembly shifter, the modification of the skidplate, and new-length driveshafts to accommodate the slightly longer length. This straightforward swap now provides four options out of the transfer case! | 
In addition to offering the new yoke and centering assembly, Shane from Off Again Auto can build and ship exactly the custom heavy-duty driveshaft you require. The folks at Off Again Auto have loads of experience under their belts and really understand extreme four-wheeling needs. |