what tranny fuild
 

what trans fulid should i run on a new reduilt 47rh

atf + 4 unless the person that rebuilt it says diff

what tranny fuild
 

what trans fulid should i run on a new reduilt 47rh

ATF +4

who rebuilt it and did they make any suggestions or say anything about warranty issues :humm: and i read a little bit of this you might read it and throw the amsoil question out there and see how people like it http://diesel-trucks.com/dodge_cummins_transmission.htm

did they still use the atf+4 on these? i know thats what they used in the 46rh's but i dont know for sure what to tell ya. im kinda curious too

atf +4

it will say rite on the dip stick

the dip stick says the mopar fluid or dexon II where is the atf+4 comein from? would the atf+4 mix with the dex fluid? bc i put the dex fluid in the tranni last and i just put my tc in and put the atf4 in the tc and i would need to fill up the pan at least half. so could i use the dex or the atf4 or i have to use all the same fluid? might be dumb question but i heard could mix as long as ones not a synthetic

Dextron 3. It's better than ATF +3/+4 since it has less friction modifiers (= less slip)

wouldnt that make it run hotter and maybe more ware>?

Yeah ATF +3 does cause more slip so I guess more wear/heat.

The switch from Dexron to the ATF spec for Chrysler auto's came somewhere between the A518 and 47RH/1994 timeframe.
There you go, thinking with your dipstick again, Jimmy! This is quite frankly, the best advice: Whatever the dipstick says.

Mopar started using a new clutch material which begat the Chrysler 7176 spec (ATF+ whatever). A few years later they released a TSB spec'ing ATF+4 for all Chrysler automatics except a few specific models of which, the 1st gen trannies were included. The current Dex fluid is VI, a GrpIII synthetic and would be the most appropriate for any 727-based Chrysler auto up to and including the A518 1st Gen OD trans. DexIII would be fine as well, if you can still find it.

You can use ATF+4 in those trannies, but it will run hotter due to the friction modifier. You can even use the old type F if you are interested in getting the firmest possible shift along with a shift kit/valvebody for racing. If it says ATF+4 on the stick use ONLY that. Dex in an ATF trans will destroy the torque converter under heavy loads.

Bottom line: DexIII may have been factory fill, depending what clutches they built your early 2nd Gen trans with. In that case, DexVI is the current most appropriate fill. ATF+4 all others.
True answer: Only the rebuilder knows for sure. Did he use the OE clutches or subsitute the later type? That would seem likely, but... What were the OE clutches for that year? If it was a '94-'95, probably only the guys on the assembly line at the plant where it was built know for sure.