GMC · Canada · High
GMC P Series, C Series +1 more: Suspension
Affects GMC P Series, C Series, G Series · 1975–1976 — about 11K vehicles.
The hazard
On certain C20, C30, G3, P20 and P30 vehicles, the front suspension lower control arm ball joint sockets were not properly hjeat treated and may cause the ball joint stud to separate from the socket causing either side of the front suspension to collapse without warning.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational