Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Ball Joint

Ball Joint

Insert a pry bar and rest it against lower control arm or tension strut (depending on which is being tested) and use lever principle to push knuckle upward until dial indicator no longer moves.

If movement in the control arm exceeds 1.5 mm (.059 in.), the ball joint is faulty.