Hey guys/gals....I have a 96 Tacoma, 4x4, v6 extended cab. I just finished replacing a bad ujoint and greasing the others thinking the noise I was hearing was due to them being dry. Well that was not the noise. It sounds like a very small ringing metal bell and I can only hear it when I accerlarate while driving. Take my foot off the gas and it stops. when applying gas in Idle...nothing. No exhaust leaks. Im stumped! It sure sounds like it coming from under the truck not the engine. I have 187,000 miles on it and besides normal maintenance and wear and tear, I have done nothing and it has been a great truck. Any ideas?

I also replaced the center bearing.