Folks, We started this project on Tom’s behalf. Yes, it took 3.5 years to complete. This has not made me happy. 1 year ago Tom went else where which I was unaware off until someone called me about a post they had seen of Tom’s rockers. I had placed the order so I was liable to finish the project. We completely redesign the rockers from what Tom's are today. Just get a set and compare. We went through 4 different rocker body designs, spent allot of time getting the adjuster screw positioned so it will load properly with correct pushrod angle. Ratio (advertised at 1.60 but checks at 1.64), roller tip location on the valve, spring clearance, and flat just building the strongest & best rocker possible within the nailheads limitations. The set comes with needle bearing 7075 billet alum rockers, hardened and ground 8620 gun drilled shafts, billet rocker shaft stands, nylon spacers, & ARP studs are all included. As far as the bearings coming apart, sounds like a sales pitch to me. We have folks with over 100,000.00 miles on our 455 rockers, and the nailheads spring pressures don't even come close. This company builds rockers for all types up to NASCAR engines. They know how to build a great street or strip roller rocker. Yes, you will need to change your pushrods to run our rockers, but that’s about it. If your building an engine or just doing a cam change. Use TA1405 lifters and oil the rockers through the pushrods. I am not in any way trying to knock Tom. Remember folks, TA made a commitment to a company in connection with Tom, so we had to see it through. I would have back out if I new sooner. If you think Tom's are a better part/better value, then I say buy them. We have sold just under a few dozen sets at this time. Very good reviews so far. Price currently at $899.95 because of price quotes early on, no deposit required. This will be getting updated soon. You are getting allot for your money, this is a difficult rocker to make. Quote: Think about it!!!! What happens if some of the "Special" parts need replacing 1, 5 or 10 years down the road. Where do you find them????? TA Performance is now operating in our 25th year, and continues to service our products.