I have a good Allison from a 08 lmm . I have a 05 lly and will be doing a trans for it . can I use the bell housing/pump and use the valve body and park switch from my 5 speed on the lmm trans .if that would work I was planning on building the 6 speed. then when i remove my 5 speed then swap out the bell housing and valve body and switch just was wondering if it can be done thank you for any input