1. 5.7 hemi

    5.7 hemi FBBO Gold Member FBBO Gold Member

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    Anyone ever heard or driven a car with this 5 speed in it? I’m on the hunt and have a few leads. It’s also cheaper than the a855 that Jamie is putting out by 2k from what I’ve found.
     
  2. NOSTRT980

    NOSTRT980 FBBO Gold Member FBBO Gold Member

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  3. Mike67

    Mike67 Well-Known Member

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    That's pretty niffty, especially with all the different shifter positions.
     
  4. 5.7 hemi

    5.7 hemi FBBO Gold Member FBBO Gold Member

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    I’ve got a few calls into a few places and hopefully I’ll hear back from them tomorrow.

    At 2k less than A855, I’m in.
     
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    • Mark B

      Mark B Well-Known Member

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      I would be interested in what the "massive torque capacity" on their website really is.
       
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      • brian6pac

        brian6pac Well-Known Member

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        Yep, I would like to see the torque spec on this trans.
         
      • 5.7 hemi

        5.7 hemi FBBO Gold Member FBBO Gold Member

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        They say it’ll hold 700lbft of torque.
         
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        • fbs63

          fbs63 Well-Known Member

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          Looks like a nice piece. Keep in mind that in a drag race application you need a soft-lock clutch or you will bust the strongest trans in the world. I have 2 friends that have beat their heads against the wall for 25+ yrs trying to use a manual and a puck clutch. Could build a complete car with the money they have wasted on broken parts!
           
        • Richard Cranium

          Richard Cranium FBBO Gold Member FBBO Gold Member

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          Good thing it,'s put out by LGT, not LGBT.
           
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          • Mike67

            Mike67 Well-Known Member

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            Never heard of a soft lock clutch???? Is that strictly a drag race application???
            People have been racing 4 speeds for 60 years behind some pretty big numbers...with reasonable results, excluding the occasional clutch /flywheel explosion...but I think most of thats due to the inherent damage caused by hi heat and stress fractures to the flywheel ....which are not checked or even seen...
            Agree that the clutch is the weak point but most racing & performance clutches increase clamp force, can't imagine anything soft in a manual doing good drag racing ....
             
          • fbs63

            fbs63 Well-Known Member

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            It's an adjustable base rate pressure plate with centrifugal assist. The clutch slips when applied til the centrifugal comes in. It allows the car to leave without pulling the engine out of the optimum rpm range. The old days the tires weren't that good so that was the slip. As the tires got better the put more and more gear ratio till the clutch technology caught up. The radials now have to be dead hooked or they spin. That means clutch slippage. Yes it is a race only worry but guys that want to do both need a good clutch.
             
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            • SSmoothie

              SSmoothie Well-Known Member

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              I’m also looking at this, I have my name in at Passion for the 855 but from what I’m reading the LGT 700 is available in 2 weeks of order. And Passion is a couple years out.
               
            • JB400

              JB400 69 Charger

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              First time of me hearing about this trans. How long has it been out?
               
            • 5.7 hemi

              5.7 hemi FBBO Gold Member FBBO Gold Member

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              For quite sometime, but it’s been hard to find anyone that sells them for some reason.
               
            • mopar_chuck

              mopar_chuck Well-Known Member

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              Wow! Looks much smaller than most 5 speeds too. Don’t think there would be any tunnel surgery using that. Nice!
               
            • Dennis H

              Dennis H FBBO Gold Member FBBO Gold Member

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              C04F22E2-4C7D-4402-9C51-ABDCF1086CA6.jpeg
              $3394.shipped.
               
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              • biomedtechguy

                biomedtechguy Accelerati Rapidus Maximus FBBO Gold Member

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                I love my Passon 855...
                I am watching this and any other heavy duty aftermarket standard transmission thread though, because the GTO may need a 5 speed!
                 
              • Fran Blacker

                Fran Blacker FBBO Gold Member FBBO Gold Member

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              • 451Mopar

                451Mopar Well-Known Member

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                I have one in my Convertible. Got it back years ago when Keisler was selling the kit. The original "kit" angled the back of the trans down to clear the T-Bar crossmember. That did not work for me as the headers hit the suspension. Modified to rise trans in tunnel as below.
                To install the trans with the output at the correct stock location, the T-Bar crossmember needs to be cut to widen it. he shifter comes straight off the top, so a hole for the shifter needs to be cut in the top of the trans tunnel for the new shifter location. They did sell an offset shifter handle so the shifter comes through the center console in the correct position. It actually shifts pretty good. Another issue is the location of the speedometer cable connection that comes out right next to the T-bar crossmember, so the cable takes a fairly sharp bend.

                trans2.jpg
                 
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                • 451Mopar

                  451Mopar Well-Known Member

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                  I did box in the open part of the T-bar crossmember where it was cut as shown above. Note hole in tunnel floor for shifter.
                   
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