'67 Dart with '68 idler arm?

Sorry about that. My thinking on this has changed since the first post. Where I'm at now is that I just want to replace the arm that I have with an identical arm so I'm just looking to identify what's on there which is why I posted the measurements. I'm assuming that whatever hardware was used came with the arm and the only reason the tab would have been drilled out would have been for the sake of that hardware.

So I've abandoned the idea of using a '67 arm and just need to figure out what's on the car now and replace that. Definitely not trying to go deeper into any modification than I need to. This is a driver and my only car so I'm also trying to avoid too much downtime while I have it disassembled. Thanks again for all the help.


Well that answer is actually simple but that is CERTAINLY not what I'd do. What is on there now is a 68-72 idler. How I know?

1...The 67 only idler arm has two studs, not a bolt and a stud

2...The 73--later idler arm looks just like the 68--72, except the stud is reversed

Here:

http://www.forabodiesonly.com/mopar/showthread.php?t=236925

This is the EARLY 68--72 center link / idler set up. The nuts on the studs of the pitman and the idler are UP



This below is the later 73-later setup. The nuts on the studs of the idler and the pitman are DOWN



If you read that thread you will discover that there are FOUR components that must all match, 68 and later. Because of the 67 idler arm, you cannot swap these parts

The steering box spline size determines which pitman arm you must use. The pitman arm must match the center link and the idler arm. Those four pieces must go together regardless of the year of the car

My 67 is a good example. After I swapped the K out for the later 73 - later style K (spool motor mounts) I first had a manual steering box with 68-72 pitman, box, center link, and idler arm that is with the 73--later K

When I started to put it back together I switched to a 'big spline" power steering box, and so had to use a different pitman, and that pitman is the 73 - later style, so I had to ALSO use the 73 center link and the 73 / later idler arm.

I would NOT do what you propose. It might not be all that safe, might not drive and handle all that well.