I am replacing the manual steering box on my truck with a power steering setup and I cannot get the pitman arm to go into the center link. To me, it appears that the pitman arm is about 1/2" too long. Were there different length pitman arms for power steering? My truck is 2wd. I've tried to get it in there with the wheels straight, at full lock both left and right and it just won't go. Any advice?