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Here is my build thread NO it will not just bolt up, but it is doable, probably not practical unless you have a fully equipped shop.I have an M1123 so I think it comes with a 4L80? Looks to be in rough shape. Would a 6L80 bolt right into the same spot and also if I put a 6.2 LS in there can the transmission stay where it is and I mount the motor and build motor mounts to it or does the whole combo need to move around?
6L80 in my M998
EDIT, as you read this thread I ended up using a 6L80 as the 6L90 was toast and the 6L80 has the same output shaft as the 4L80/3L80. I was at a machine shop auction the other day and picked up a 6L90 with a MP1626XHD transfer case, it is complete with T/C, the front shaft, cooler lines and shift...
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