Vehicle recall 90V048000 · March 12, 1990
1988-1990 Mack CH
The upper and lower pinch bolt on the steering pitman arm and the lower pinch bolt connection on shephard power gears were not torqued correctly.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- The upper and lower pinch bolt on the steering pitman arm and the lower pinch bolt connection on shephard power gears were not torqued correctly.
- Consequence
- Pinch bolt could loosen and break; this could cause loss of truck steering control and result in a crash.
- Remedy
- Install english hex head bolts and flat washers; torque pinch bolts to specifications.
- Notes
- System: steering wheel arm pinch bolt.vehicle description: heavy-duty trucks with TRW power and manual gears and sheppard power gears.
Recall details
- NHTSA campaign
- 90V048000
- Reported to NHTSA
- March 12, 1990
- Filed by
- MACK TRUCKS, INCORPORATED
- Owner notification
- June 27, 1990
- Vehicles potentially affected
- 6,696
- Initiated by
- the manufacturer
- Components
- Steering › Linkages
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
Has your Mack been repaired?
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