Lowering Center link (drag link)?

I have a 1973 Swinger with a 400 and pro parts headers. A center sump Milodon oil pan. I am having some minor clearance issues with the center link and driver side tie rod end. If I dropped the center link by a half inch, I'd be fine. I switched the center link, pitman, and idler arm to the 1970-72. That gave me a bit more clearance. Anyone use any aftermarket pitman/idler arms that lower the center link? Shims? I'm close, just need a bit more room.