Stumble from stop light under mid to heavy throttle

[ewebby]

I ended up giving up trying to get front shaft into my old transfer case, I bought a new shaft and rebuilt transfer case from https://www.tcbmwx5.com/
check your splines, if they look like mine below, you need a transfer case. 4 hours of filing did not work due to the first inch of splines were half broken off and the torque kinda bent them, no way to get it in. 4 days of trying and figured with 260k prob worth it to get a rebuilt. Plan on keeping car for another 5 years so will see.

after filing for 4+ hours with small flat and square files.

[Spartan]

It looks like the original shaft never was in there that far... I get hand cramps thinking about filing that much at my age , the end of the transfer case looks like it was hammered a bit as well or is that an optical illusion?