| Steve, The Specialty Z flexplate will work with the TH400 swap. A stock one will work too but I recommend Specialty Z's. Z1 has supplied my customers with driveshafts in the past. I have worked with PTC to build torque converters for this swap, they have my blueprint for dimensional specifications so you are gauranteed it will fit without hassles. Since I do not sell their converters, you are responsible for getting the right stall speed for your car. Shoot me an e-mail if you have any more questions.
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