I've got a noise on decel that I am having trouble finding. At any speed above 30 or so, if I let off of the gas, I hear a horrible noise. A gear meshing kind of noise. ERRRRrrr ErrrrEr Errrrrrrr(best i can describe it) It almost sounds like its coming from the trans or tcase. Lots of new parts: 5.38 gears( proper backlash), carrier, master install kit. It is a noise I had before. It did it for a long while with the other gears(4.56) and the old carrier, just not as loud. It just went away one day after wheelin. when I pulled the cover off to do the gear swap, I had alot of water in the diff. I am thinking that the extra fluid helped contain the noise. I just added an emergency brake cable to one side, but it is not hooked up yet. It is zip tied to the frame until I get the other one and put it on. That could have something to do with it. I had cut the old half of a cable out about the time the noise stopped. Mabey I'm grasping at straws there. The axle has alot of angle in it. It pretty much points at the tcase. I wheel with others with the same angle and they have no problems. U joints are good. It is a 241 tcase with a SYE. If I let off of the gas the noise starts. however, if I apply the brake, it will not make the noise until I let off of the brake. Usually I have one foot on the gas and 1 on the brake. It makes the noise if the truck in in neutral or drive. Could the hub/axle bearings cause this?(Hope so) I haven't looked at them. Could it be in the tcase? I think the noise is being transmitted through the dshaft from the rearend. I actually swapped in a different tcase and the noise didn't change.(also used a different driveshaft at that time) So that leaves the rearend, or the transmission. I am going to recheck the backlash, but because it has done this before, I don't think that will be it. Please post up any suggestions. I am going to remove the ebrake cable tonight, just in case. ******MY FIX****** It is the angle that my Dshaft is at. I added the overload spring and a zero rate while I did the 5.38 swap and the extra speed of the Dshaft are making a "gear chatter" noise.