While we have the Klann (actually MB as it was purcxhased from MB) spring compressor, we probably never use it on a 126 front end. Anything loose in the front end needs replacing but the standard part that causes shimmy at 50-60 is the caster joint. The only reason to remove the spring is the forward bushings of the caster strut rod located under the lower spring pearch.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician