Transfer case differences?

[J.O.A.T-M.O.N]

I bought a 4l80e to swap into my 1097a1. The new trans came with a 242 transfer case ( 2520-01-409-2512 / 12447125 ). My 1097a1 has a 242 transfer case in it (2520‐01-452-7569 / 12342643) both are 272 ratio. Can anyone enlighten me on the differences? I haven't actually started the swap yet, just collecting parts for it and would like to know which transfer case to use if there is a difference.

Thanks,

 

[86humv]

The difference is the tail cone....3 bolt and 4 bolt....so different drive shaft.

 

[J.O.A.T-M.O.N]

The difference is the tail cone....3 bolt and 4 bolt....so different drive shaft.

Thank you. I took a closer look after you posted this and I'll post pics of the tail housings. Now the decision of keeping the one I have and shortening the rear shaft or using the new to me one and buying a shaft. That might mean changing the rear yoke also. Time for more research.

 

[Mogman]

Thank you. I took a closer look after you posted this and I'll post pics of the tail housings. Now the decision of keeping the one I have and shortening the rear shaft or using the new to me one and buying a shaft. That might mean changing the rear yoke also. Time for more research.

That shaft looks a little short to me to begin with