Review on Auto Extra Mevotech MK6663 Lower Joint by Mike Malvo

The lower ball joints were for Pioneer 04. Take my advice; DO NOT replace just the lower ball joints. I ended up replacing the entire lower arm with a Moog lower arm that came with pre-pressed ball joints for not too much more than the balls, which originally cost. This is the correct way to replace old ball joints on older Trailblazer or Envoy models. Both Mevotech ball joint shoes failed within the first thirty days. I'm giving 3 stars instead of 1 because what happened, although the boot shouldn't tear at the bottom seam, is due to the joints showing excessive wear as you would expect from a 14 year old truck. Both ball joints were properly pressed in, however both lower ball joints began to slip out of the knuckle within 2 weeks causing the tires to bottom out and destroying the tires because the driver continued driving when it was too late to stop the slip. Ball joint inversion may have been caused by excessive wear of the single knuckle and the extra vehicle weight on the joints causing the failure, but at the same time the extra weight should not have caused the boots in the bottom "seam" on both ball joints to break. . In the end both lower wishbones were replaced and ensured that the new lower wishbones come with the lower ball joint already pressed in.