NHTSA recall 90V052000
Steering › Gear box › Shaft sector
Mack R and 2 more
The defect
Interference between steering gear sector shaft and the frame rail through hole can cause sector shaft wear and can weaken shaft cause it to break.
The risk
Shaft failure during vehicle operation would cause loss of steering control and a crash without prior warning.
The remedy
Enlarge frame rail through hole to prevent interference: replace steering gear sector shaft if scored.