NHTSA recall 90V197000
Trailer hitches
Witzer Challenge
Reported Nov 29, 19901,350 vehicles affectedI.R. WITZER CO., INC.Built Sep 1, 1984 – Aug 1, 1990
The defect
The mating surface on some laminated "j" hooks may be uneven, or the swing down arms unequal in length, either of which could result in uneven load bearing of the hooks.
The risk
Uneven load bearing on "j" hooks could cause failure ofeither hook, which results in trailer separation and a vehcile crash withoutwarning.
The remedy
Replace swing down arms if they are unequal in length, and inspect and repair "j" hooks to assure symmetrical loading.