Did you happen to swap trans, too? Are the threads ok? Is it like at an angle that it hasn't been at before?? A little more info on that one and maybe I can help. I went through the whole trans line deal on a '73 Maverick w/ 5.0 and AOD swap and Hedman Headers long tubes. I couldn't get my hands in between the headers to get to the trans lines easily so I took the headers off and then got the lines on.