Summary:GM is conducting a voluntary recall campaign (85V-048)involving 2,136,826 vehicles. The recall is limited to vehicles built atcertain assembly plants which, according to GM, overtorqued the brakepipe nut, thereby overstressing the wheel cylinder support area of thebacking plate.analysis:front brakes provide sufficient braking for passenger carsin most non-emergency situations. All affected trucks are included inthe current recall.in most cases the problem is discovered during brakemaintenance.the recall appears to cover those groups of cars with thehighest failure rates.status:analyzing GM ir response and new complaint data. Draft closingreport by 5/15/88.===
