The idler arm, pitman arm, or center steering link may wear and cause excess play in the steering. If any of these components are replaced, the front end alignment should be checked.Google+
Car Problem Reports
Chevrolet Astro Idler/pitman arm or center steering link may wear
Chevrolet Astro Problem
Average Mileage: 186,500 mi (100,000 mi - 220,000 mi)
Visitor, 2001 Chevrolet Astro, 211,000 mi
Idler arms need replacement
Visitor, 2005 Chevrolet Astro, 100,000 mi
I did not think I had a steering problem. But a mechanic said it was bad. So I had them replaced.
Visitor, 1995 Chevrolet Astro
My astro is allwheel drive. I have two Idler-Arms and by design they operate in a slight bind. Iv'e replaced
both of them at once and the steering is precise again. The steering balls are on the idler-arm not on
the drag link as usual. They'er about $75.00 apiece.