I've got a 2005 Ram 1500 2wd Daytona. No modifications currently.
I have a nasty ticking sound coming from inside the bell housing. Video link is at the bottom of this post. It's between the trans and the engine. I've used my mechanics stethoscope to try and isolate it. It doesn't happen at idle, doesn't happen in reverse that I can hear. It only ever starts when I'm in gear and moving with the engine between 1500-3000 rpm's. And even then, it will not do it when decelerating or under heavy load. Only when the throttle is at about 20% (i.e. cruising/maintaining speed). It will do it in park, but it's nowhere near as bad and not consistent.
Put it on the valve cover - just the normal light ticking of the valves
Put it on the head - Normal valve ticking and slightly louder exhaust.
Put it on the oil pan - Muffled sound. nothing weird, and no ticking in there at all.
Put it on the oil pan bolts and it was audible but kind of quiet
Put it on the transmission pan and it was audible
Put it on the bell housing and bingo... it's LOUD.
Put it on the mating point right where the flex plate is, and it's the loudest.
It's worth noting that I do have an exhaust leak at the head which I will be fixing very soon with some headers, new gaskets, and new hardware. BUT I don't think it's related because the sound from that can be heard at the same time as the mystery tick, and they are audible at different times and sound completely different.
I took the truck into a certified transmission shop and they looked at it for me. I told them if they could find the problem I would have them fix it, so they had EVERY incentive to find SOMETHING wrong... and they couldn't isolate it. They took off the inspection window and even re-torqued the TC bolts. Still ticking. They didn't charge me for the inspection or work and they didn't find any cracks in the flexplate. But full disclosure, that inspection window does not let you see the whole flexplate, so they wouldn't be able to see cracks around the flexplate where it bolts to the crank.
I changed the oil 3 days ago and there was absolutely zero metal stuck to the drain plug magnet I highly doubt this is an engine related issue.
Anyone know where I can get a high quality replacement flexplate and who makes the best 2600 stall for a daily driven truck. Also, are there any other mods I should do while I have the TC and flexplate off?
Here's a video of the sound.