I never liked the idea of mounting spacers between the hubs and the wheels.
I wanted to mount CLK rims on the W123 wagon and the rims just brush up against the boot of the tie rod end. I used the spacers that are used on the AC compressor to move the knuckle inboard just a touch. I went with the middle thickness spacers (10mm) as the larger ones would not have left enough room to shorten the tie rods for proper toe in. Of course corresponding longer bolts are required. The only thing left to do is smash the dust covers more so the wheel cap will fit nicely. I smashed them a smidgen but it wasn't enough. I think these rims look good on wagons & coupes but for some reason I don't think they look right on sedans.

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'70 F100 shortbed
'82 Diesel Westy
'83 Euro 300TD
Curtlo Viper
Yeti ARC
Surly long haul trucker