Transmission Tunnel

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  • Regular price $129.00
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Custom CNC Laser cut and etched Transmission Tunnel designed for your Tremec T-56 TR6060 6 speed manual swap, 4L60, 4L80, and 6l80 in your Chevy Muscle Car. 

Material:  22Ga. mild steel with Galvanneal coating (used in automotive body production for corrosion resistance), CNC laser cut

It is custom-designed to fit each side of the existing tunnel, each side is different. 


  • Flat sheet that needs to be bear hug rolled, very easy to do. 
  • Tek screws
  • Nut driver

We couldn't find a nice easy transmission tunnel for our 1968 Chevelle LS3 T-56 swap so we developed our own.  It is very easy to install and looks great when done.  Once welded in place, it can be finished and almost will look original. We searched the internet trying to find one we would be happy with but failed to find anything worthy.  

Once installed, this is a VERY strong tunnel that you can stand on without deforming.  We pride ourselves on simple no-nonsense approaches to get things done.


Used on:  Chevelle, Camaro, Nova, GTO, Tempest, Lemans, Skylark, El Camino, Most A-Body cars, and many others.