If you can post a good shot or two of the rear of the cluster we might be able to give you some ideas IE Take two photos, maybe--of overlapping over 1/2 the cluster and post them both
So far as it running now that's great but "the problem" might still be there.......like a bad/ intermittent connecion in the bulkhead connector, etc. I would inspect that whole run through there
i am going to be tackling that this weekend. There is actually a place locally that just redoes clusters. the back board looks burned as do two of the posts. Let's not even talk about the temperature gauge...lol