Transmission Fluid Type for 727 Trans.

General Mopar Tech Discussions

  1. wild bill

    wild bill Well-Known Member

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    Well folks i am sure many of you have answered this question a million and one times. But here goes: I have a rebuilt 3 speed (dah) 727 Transmission out of my 1969 Road Runner. My question is: What kind of trans fluid you folks like/recommend. iam told many say F Type. Oh, Oh, Oh Riellies (sic) said to try" "B and M original trick shift, part no. 80259. Any thoughts? Thanks again. Wild Bill
     
  2. '73bird

    '73bird Well-Known Member

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    F type is ford only as a previous mustang guy i wouldn't think to put that in anything but a ford
     
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    • jimt1971rr

      jimt1971rr Well-Known Member

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      I know that Dexron is factory and when I had an automatic (904) that is what I used.
       
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      • lewtot184

        lewtot184 Well-Known Member

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        dexron III is what i use.
         
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        • BigHemi

          BigHemi Well-Known Member

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          Type F or Type FA. It's better for quicker/firmer shifts. It's all I use in my 727s.
          The B&M Trick Shift fluid is just Type F w/ blue dye added...and costs a lot more.
           
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          • 747mopar

            747mopar FBBO Gold Member FBBO Gold Member

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            I used type F. When installing a B&M shift kit they always recommend B&M oil or type F for the firm shifts like mentioned.
             
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            • 727

              727 Well-Known Member

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              I have used Type F in all of my 727's without any issues.
               
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              • Darter6

                Darter6 FBBO Gold Member FBBO Gold Member

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                In 1973 when it was Direct Connection, I went to one of Mopars seminars in Ohio.Larry Shepard was one of the speakers and he explained it this way,,,Dextron II was developed for the guy driving his Imperial to the office.He didn't want to feel the tranny shift and lord knows not to spill his coffee on his suit.For High Preformance use 1 quart of non detergent 30 weight oil and the rest type "F".After all these years I still remember that day.Been doing that for 43 years now and never had a failure...My 2 cents.
                 
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                • Joeyt66

                  Joeyt66 FBBO Gold Member FBBO Gold Member

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                  Times 2
                   
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                  • FU64RY

                    FU64RY Well-Known Member

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                    Type F recommended by the shop that just rebuilt my 727....................He is like 90 and has been doing them for decades.
                     
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                    • resq302

                      resq302 Well-Known Member

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                      I've run Dexron / Mercon Castrol trans fluid in our GTX and Chally. No issues.
                       
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                      • doublekrossd

                        doublekrossd Well-Known Member

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                        I have no idea what fluid is in mine currently. If I drain the pan, I know it wont get even half of the oil out, will it hurt it to refill with type f? I only ask because I have had some issues with my kickdown being adjusted properly and have got the trans a bit warm. Figured I'd change out any fluid I could.
                         
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                        • HALIFAXHOPS

                          HALIFAXHOPS FBBO Gold Member FBBO Gold Member

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                          Believe it or not I have been using 303 tractor hyd fluid and it is great. I do add a quart of dextron to make it red though since it is clear. $30 for 5 gallons also. Read up on it.
                           
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                          • 747mopar

                            747mopar FBBO Gold Member FBBO Gold Member

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                            Is it formulated for wet clutches and the seals? That's where my concern would be.
                             
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                            • HALIFAXHOPS

                              HALIFAXHOPS FBBO Gold Member FBBO Gold Member

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                              I do believe it is. I have to find all the specs again.
                               
                            • HALIFAXHOPS

                              HALIFAXHOPS FBBO Gold Member FBBO Gold Member

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                            • SlinktRR

                              SlinktRR Well-Known Member

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                              DexIII or Type F are fine. I mix and match and my 727 shifts like a raped ape either way.
                               
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                              • wild bill

                                wild bill Well-Known Member

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                                July 13, 2016: Post Script/Report: well folks i selected the F type (also now known as FA) to put in my 1969, RR 727 TransThe only brands i could find, however, were house brands. Thus, I went to NAPA. NAPA rep. told me their house brand is provided by Valvoline. I bought it at 4.99 per quart. Ok, Thanks everyone for your input. I really appreciated all the comments on this issue. GO MORPAR!
                                 
                              • doublekrossd

                                doublekrossd Well-Known Member

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                                let me know how you like it, I'm thinking of going the type "f" route to get my shifts a bit firmer.
                                 
                              • wild bill

                                wild bill Well-Known Member

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                                Yes, I will certainly let everyone know how F type works. Funny, I installed a HUGHES rebuilt 4L60 in my 1970 Olds. I called HUGHES and asked Rep what fluid type I should put in that Trans. He said F Type! Really? Yes he responded F Type
                                 
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