1. dodgedifferent2

    dodgedifferent2 Well-Known Member

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    So i picked up a tr6060 trans from a wrecked 2011 challenger srt8. I want to switch it to a t56 magnum style for shifter location. The challenger input shaft is the one year only 11 spline.

    Yes i could of bought a brand new t56 magnum. I have had this trans trapped on opposite side of border since covid started :-(.

    I scrounged up most of the parts for this swap. Only thing is the shift rail that i still have to source or machine my own.

    Plan is to put it into the dart when i cram the 400 stroker in.


    I got an LS t56 magnum input shaft for the 2.97 first gear, T56 magnum mainshaft and tailhousing with shifter. Unsure if i needed the LS midplate but it was available so i jumped on it. 20211208_154606.jpg


    Alot of people have posted dissassembly procedures before but i will document what i am up to.

    Here is the patient. I have already taken the shifter off at this point but photographs always help later. 20211208_150431.jpg

    So lets get this trans upright to start dissassembly i already removed the driveshaft flange with an 1 1/4 socket. Removethe tailhousing bolts 20211208_153824.jpg
     
  2. dodgedifferent2

    dodgedifferent2 Well-Known Member

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    Now pull the tailhousing off and all the extras. 20211208_154127.jpg 20211208_154136.jpg

    Now start removing those gears and snap rings.

    Remember how i said remove all the sensors etc. I forgot one and then she spilt oil everywhere. 20211208_155019.jpg 20211208_155333.jpg


    Back to gear removal 20211208_161450.jpg 20211208_161212.jpg
     
  3. dodgedifferent2

    dodgedifferent2 Well-Known Member

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    Now i broke my phone so i missed a few steps, but the giant 18-20 inch gear puller was created to remove 5th, 6th and synchro.

    Now i had to remove the midplate bolts to take main case off to get to the mainshaft.
    So i rotated the trans to access the bolts. Remember how i had leaking oil. This is when super mess was created as all the oil puked out like a pail of water. Yup, i forgot to drain the oil.
    20211209_160422.jpg

    Here you can see all the gears were removed.
    20211209_160429.jpg

    Remember the split ring on the one gear because the puller will not win
    20211209_123859.jpg 20211209_123906.jpg

    This is how the trans is sitting at this moment. More to come as part swapping and gear removal continues. 20211209_162423.jpg
     
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    • dodgedifferent2

      dodgedifferent2 Well-Known Member

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      Input shaft differences
      Ls magnum on the left and srt challenger on right
      20211210_095411.jpg
       
    • dodgedifferent2

      dodgedifferent2 Well-Known Member

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      Both mainshafts side by side.
      Challenger is the threaded end
      Magnum is the splined end. 20211213_132640.jpg
       
    • dodgedifferent2

      dodgedifferent2 Well-Known Member

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      I found this piece today Screenshot_20211213-201132_Chrome.jpg

      Its what they call the dogbone for the shift rail.

      Hanlon motorsports in PA helped out alot with the stuff i was not aware of. So i got the entire shift rail, rebuild and upgrade kit.
      Waiting on it to arrive now. Then i can start assembly.
      Bob Hanlon has notes for all the transformations of tr6060's to magnum conversions. The Tremec 5 & 6 Speed Specialist | Hanlon Motorsports - An Elite Dealer
       
    • goldduster318

      goldduster318 Overzealous Car Modifier

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      Cool. Doing it the hard way, but I think you'll like it in the end. I absolutely love mine.

      I did the conversion 3 years ago to a T56 magnum (LS style) and I cover most of the parts.

      T56 Magnum Conversion
       
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      • dodgedifferent2

        dodgedifferent2 Well-Known Member

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        Box of treasures arrived last night. 20211217_100522.jpg

        Now i got some work to do.
        Just have to catch up on the money making tasks first.
         
      • dodgedifferent2

        dodgedifferent2 Well-Known Member

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        Got some of the mainshaft gears and synchros transfered over to the new mainshaft 20211220_155415.jpg


        Now i realized my mainplate is missing its shifter bearing 20211220_155430.jpg

        Here is the bearing in the challenger mainplate. It slides back and forth in the bearing collar as you shift. I could not remove it easily so i ordered a new one. Should arrive during christmas holidays. So looks like this is on hold till after the new year. 20211220_155828.jpg
         
      • dodgedifferent2

        dodgedifferent2 Well-Known Member

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        Shift rail bearing arrived today.
        Part number Tuba7952

        20211230_131521.jpg
         
      • dodgedifferent2

        dodgedifferent2 Well-Known Member

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        So installed the shift rail bearing.
        Started assembly today.

        Got to the shift rods and found out now i am missing the 5-6 shift rail lever shift pad.
        So ordered that. Now sit and wait and hope its the correct one. 20220103_101715.jpg 20220103_104904.jpg
         
      • DionR

        DionR Well-Known Member

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        Mind sharing what the swap parts cost? Been bouncing off the walls with ideas and thoughts and haven't found a source for those parts to see if it makes sense to follow in your footsteps.
         
      • dodgedifferent2

        dodgedifferent2 Well-Known Member

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        Most of these parts were bought just as the t56 magnum F was being introduced. Parts from the magnums were readily available at the time.

        Used tr6060 from auto wreckers ‐--------$1000
        Magnum output shaft ‐‐------------------------$308
        Ls Input shaft ----------------------------------------$250
        Ls magnum midplate-----------------------------$320
        Magnum tailhousing------------------------------$225
        Shift rail bearing------------------------------------$15
        Rebuild kit with bearings and magnum shift rail ----$1011

        Total of $3143

        At this price. Someone could buy a new t56 magnum direct from Tremec. $3295. Unless they find other bargains for the pieces needed. I could of stayed with the challenger midplate and input shaft, but the one year only clutch splines worried me.

        In the end I love tearing into stuff and making work what i want. I probably had more fun than going on a vacation somehwere.

        I should also state that the wife didnt see one big purchase she only saw small purchases spread out so it didnt hurt as bad ;-) (funds came from scrap metal collecting so no bank accounts were hurt in this fun)
         
        Last edited: Jan 7, 2022
        • Thanks! Thanks! x 2
        • DionR

          DionR Well-Known Member

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          Thanks!

          I have toyed with the idea of a used trans for just the reason that I wouldn't have to shell out $3.5K all at once for the trans.

          But in the end I don't think I can make it pencil out. I was thinking that a $2K trans and a couple of parts to convert it so I could use an LS to Mopar bellhousing might work out. Then I realized, why not just use the Camaro trans from the start? Saves the need to swap the input shaft, and I was thinking to use a different shifter and a Sonnex output adapter either way.

          But the numbers with a used LS trans, aftermarket shifter and expensive driveshaft ended up being within $50 of a new trans. And then I discovered that the tail housing on the Camaro trans won't accept a shifter like the Challenger one would. So a used Challenger TR6060, plus an LS input shaft and midplate would add a significant amount over just buying the trans new.

          Unless you know of a bellhousing that allows an unmodified TR6060 out of a Challenger to bolt to a MSB or MBB, feels like a dead end for me.

          Unless I trip over a really good deal on a Challenger TR6060. That cost is the pin that everything else would pivot on.

          Not critiquing what you are doing, I would have done the same thing. Thanks for the info!
           
        • dodgedifferent2

          dodgedifferent2 Well-Known Member

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          There is no bellhousing for the challenger input shaft length. The midplates are the same. Challengers midplate is .400 thousandths thicker

          My original idea was to make a spacer to make the challenger trans work, but then the shifter was an issue.

          The remote shifter with the tr6060 is the challenge. However there is an adapter to use the mid shift location. (I did not know of this at time of tailhousing purchase)
          Either way building a driveshaft for the flange or the slip yoke is a wash. If you swap the tailhousing and mainshaft it is near the same cost of the "special driveshaft"
           
        • DionR

          DionR Well-Known Member

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          I was going off this post and picture:

          img_1053-jpg.jpg

          The OP of that build said it was a White Lightning shifter from American Powertrain. The pictures I've seen of the LS trans don't appear to have that mount, only the forward (mid shift?) one. Don't know if that shifter could be used on the forward location or not, but based on the build pictures later in that thread I would guess it wouldn't make for a clean install.

          Between the driveshaft, flange adapter, shifter, input shaft and midplate, the additional cost comes out at more than $1500. If I could get an $1700 or $1800 Challenger TR6060, it would be a wash.

          Good point.
           
        • dodgedifferent2

          dodgedifferent2 Well-Known Member

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          • Thanks! Thanks! x 1
          • DionR

            DionR Well-Known Member

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            Ouch. Found a place selling most of the parts and even without the main shaft I am at $1200. Even just the mid-plate and input shaft are $700. Tailhousing was $500 by itself.

            Even with the cheapest (and most reasonable) used TR6060 I can find for $1515, I am $125 more than a new T56 Magnum. That's with just doing the input shaft conversion so I can use an off the self bellhousing and after I add in the additional parts due to the shifter and output flange.
             
          • srduster340

            srduster340 FABO Gold Member FABO Gold Member

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            I know a guy who has one out of a 2011 Challenger who wanted me to buy it but I looked at all the hassle of making the swap so I decided not to pull the trigger. I just went with the TKX kit. $3500 shipped from Silver Sport Transmissions. Already had Quicktime bellhousing , and release bearing from Powertrain Technologies. Haven't started the install yet though.
             
            Last edited: Jan 8, 2022
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            • dodgedifferent2

              dodgedifferent2 Well-Known Member

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              The missing piece finally installed. 20220110_092904.jpg

              Now more assembly can begin. Put the case back on. Beginning to look like a transmission again
              20220110_100016.jpg


              Lets see what i can accomplish today....
               
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              • dodgedifferent2

                dodgedifferent2 Well-Known Member

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                So the two torx bolts are alignment bolts that go to the shifter interlock system. Never understood what they were for so here we can see what they are doing 20220110_115345.jpg 20220110_115356.jpg


                Here we have the midshift position setup 20220110_123505.jpg

                The unobtainable dogbone for the other two positions 20220111_161141.jpg


                And all the gears installed
                20220110_162245.jpg 20220111_091436.jpg

                Speedo for electronic and mechanical. Ope s options
                20220111_160721.jpg 20220111_160733.jpg

                And tail housing setup for a viewing

                20220111_161423.jpg
                 
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                • Riddler

                  Riddler Project EH-Body

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                  Awesome! I know who to call on if I break my T56 Viper trans.

                  Riddler
                   
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