My Duster is under the knife....TKX going in

I worked with a customer a few weeks ago putting a tkx in a 65 GTO... Basically we had to do a little banging in the tunnel and drill two new holes for the crossmember... Completely different installation likely but the end result was a lot better gear split and he was much happier with the freeway RPMs... I was much happier with first gear as the car felt like it had a lot more initial get up and go...