I should add that I am more than an hour from my closest dealer, who also happens to charge $150 for an alignment, or I'd have just bit the bullet and gone to the experts in the first place. I felt comfortable that the local place I used could handle a rudimentary alignment because he knew of the spreader bar, admitted they didn't use one, but said he had done W124's before and that he'd never had a complaint. Of course, I could be wrong about their familiarity with W124's...

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1992 300D 2.5T
1980 Euro 300D (sadly, sold)
1998 Jetta TDI, 132K "Rudy"
1974 Triumph TR6
1999 Saab 9-5 wagon (wife's)