HELLO

i am starting my first conversion, i am dropping a 5.9 cummins 12 valve into my 1981 Chevrolet C10 single cab short bed.

i alreday have the engine but im not sure about the transmission, someone told me to use a allison 545 but im not to sure about that, i was thinking more like a 47RH.

please i need some help here.

 

why not a manual? be a lot stronger trans with far less maintenance and less to worry about...

NV4500HD, NV5600, or G56 all should bolt right up.

if its a 4x truck then get a NP241DHD xfer case.

 

^ 2x

go with a manual

 

Allison 545> 47rh ..im using. A nv4500 manual but thats alot of weight for a half ton cummins alone is a 1000lbs