CHanged tranny fluid not looking good

Well i just changed my tranny fluid yesterday. This was the third change sine i had the truck, once at 50k, again at 80k and now again at 110k. First two times the tranny was perfect nothing in the pan to speak of clean clean. This time there was alot of ground up metal material in the pan stuck to the magnet, and there was alot of bronze material in the pan as well as on the top of the filter. So im guessing i need a new trans here b 4 too long. I put some new castrol dexron 6 fluid in there along with a quart of lucas transmission fix. Seems to be doing ok but im scared to get on it hard..... So im gonna get either a FLT level 5 or has any one ever used perforabuilt transmissions?? They are a sponsor of PT.net. Either way i was a built ass trans to go in there next....