Vehicle recall 88V102000 · June 27, 1988

1988 Mack RD Series

Compression of front springs could interfere with the 90 degree crossover fittings on the bottom of the gears.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary: Compression of front springs could interfere with the 90 degree crossover fittings on the bottom of the gears.
Consequence: If one of the fittings break, the hydraulic fluid islost, resulting in loss of power steering and possibly a crash.
Remedy: Replace center port steering gear cylinder heads with new side port cylinder heads. Also, install thicker bumper stops to eliminate spring to gear contact.
Notes: System: steering gear.vehicle description: heavy duty trucks equipped with sheppard dual steeringgears and 34.5 inch spring centers.

Recall details

NHTSA campaign: 88V102000
Reported to NHTSA: June 27, 1988
Filed by: MACK TRUCKS, INCORPORATED
Owner notification: June 22, 1988
Vehicles potentially affected: 140
Initiated by: the manufacturer
Components: Steering › Gear box (other than rack and pinion)

Recall 88V102000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Mack RD Series (1988): 1988

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