71' suburban 4x4

[Dieselwrencher]

Originally Posted by infinite-foamies

I have no idea what is because as from the begining, everyone has a different story. It does not have lockup but has OD and came from a 5.9 Cummins. I was told 47rh has lockup and 46rh does not ans is more stout.

If you have overdrive and no lock up, you have a 518 which is an updated 727 with over drive. 47rh's were only put in v10 and cummins 2500 and 3500 1994 and 1995 trucks. I've seen a 47rh In a super late 93 first gen, but it could have been swapped in at some point. The 46rh's are gas transmissions and do have lock up and overdrive like the 47rh. They never had the bigger bell housing. They were behind 360s and maybe 318s. I can show you pics as I have everything besides a 727, 48, and 68rfe.

Sorry for hijacking your thread. Have any underhood pics of the beast?