It's your links and bushings. I have found very good replacements from NAPA. The bushings are made of a better material. They are a little harder but I've found it makes the van more stable. THe links are a little more robust and have grease fittings. Half the cost too. Larry ]
Based on similar parts for the LH cars, I suspect they are the same parts (Moog/TRW) that the other regional chains carry. Usually cheaper at the other chains. The Moogs (their 'Problem Solver™' line) are greasable, the TRW's are not. One owns the other (IIRC TRW owns Moog?), but I have found that regardless of which one you have the store order from the warehouse, you could get either one (Moog or TRW) in the exact same box under the exact same part number (the only difference in the box being a label of 'Made in USA' (TRW part) or 'Hecho en Mexico' (TRW part) - you might order two and get one of each.
Here is an "expose" on the LH aftermarket end links:
http://300mclub.org/forums/viewtopic.php?t=8050 - not sure how similar the situation is for the T&C.
Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x')