I had to modify the flange on my Hi-torque starter so that it would bolt up to the G50-52. There are 3 bolts that secure the starter to the flange, simply remove the bolts and rotate the flange to the proper angle (so that the starter will clear the suspension and the trans), then mark the flange and starter housing. Drill new holes in the flange (I only had to drill 2 new holes because one of the existing holes lined up when I rotated the flange), and bolt the flange on then you will be able to bolt the starter up to the trans. You will have to use a Porsche flywheel and pressure plate as well. I got everything including a cable shifter (that works very well), from Kennedy Engineering.