241C linkage problem

[JPVortex]

need some advice here for my transfer case shift linkage, finally attached my front driveshaft again(been off since i did the tranny) and having some issues with the linkage now. Whenever I go into 4lo the nut on the transfer case shifter to the linkage loosens and I cant move the shifter in the truck at all(it just flops), and its now not engaging 4hi at all. It semi clicks into it but I dont think its grabbing it all the way, but the stick for it is all the way down as far as it'll go.

 

[JPVortex]

Is the keyed part on the linkage supposed to go in the keyed part on the stud for the shifter on it? I couldnt get that to slide over it, but maybe that's why it's all messed up.

This part here, Is it supposed to go over the rectangle part on the t-case?

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[Schurkey]

The slot in the lever fits over the similarly-shaped part of the shift shaft.

If it doesn't slide over, there may be a burr or deformation that perhaps can be corrected with a hand-file.