1974 Duster Idler arm question,

player1up said

Ron, Does the idler arm slide up and down on the bolt or wobble up and down?

There should not be an inch of travel. Are the tabs parallel to each other?

As for the k-frame being out of a different car, the Duster never came with a big block and the differences between /6 and v8 K frames are just for the motor mounts.
It could be from a different year. The 74 should have a center link with the holes for the idler and tie rod end in the same direction. Earlier center links had the idler hole and tie rod hole at 90° from each other.

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"Does the idler arm slide up and down on the bolt or wobble up and down?"

The arm slides up and down on the bolt, no wobble, thats why I wondered if there were missing shims or spacers. This does cause major movement between the connection points on the center link. Seems like the space between the mounting tabs are a bit excessive, but they appear to be parallel.

The car does have headers and it looks like at some point that the inner tie rod end was hitting/scraping the header. Could they have possibly left the shims out on purpose so it would move and therefore be able to avoid the header? Seems they would of just heated and bent the header a little bit to create the necessary room.

If I recall, the center link connections are inline. I was thinking big block k-frame because I was under the assumption that there were big block k-frames that would bolt up to the duster.