I have a ZF 5 speed in my 78 and i am having issue with the line leaking. The tranny is out of a 90 f250 with a 460. My question is does the newer zf 5's still use the push in line with the drift pin or is it a threaded assembly, or is there and aftermarket up grade that uses a threaded line. I've looked at the universal willwood models but i don't know if it will have the oompf to push my cluth. any advice would be apprecieted.