[mt. goat]

I put a tko600 in my 65 GTO this summer. I learned most of what i needed from this forum. Missed shifts refers to 2nd to 3rd and hitting 5th,kinda blows your e.t. Cut the floor pan and rotate it then splice a piece of sheet metal on side gap. Get the optional GM 2" offset shifter, 26 spline clutch disc, 31 spline diveshaft yoke and move the trans mount back 1.5". You should have 1" spacing between the rear rubber boot on trans and face of driveshaft yoke. You'll love it.