My Z1 FUCA'S came unscrewed left me stranded. Was sent replacement parts and updated lock tight, less then one year later ball joint snapped, again leaving me stranded and damaged strut. Z1 REFUNDED my money, went with SPL. No issues since and no more squeeks and bumping noises either. Lesson learned, no more Z1 suspension parts. I do have their 34 row oil cooler, and rear diff cover very happy with both. Thinking of trying their rear bushing inserts next.
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