yo
For an E4OD; NOISE:
From bellhousing = Pump problem
In all gears except 3rd = Planetary gear train problem
All gears all the time = Bearing or bushing failure
I think you recently wrote here that you just replaced the front seal & have a leak; was this leak & noise before or after you did the job?
Will this help?
Pump & Overdrive Section Assembly Tips; "...It is recommended that an aligning band be used when assembling an E4OD pump. The alignment band will locate the outside diameters of the pump assembly but not the bolt holes. To align the bolt holes quickly and easily, install a 10 mm shank bolt as shown in Figure 1, during assembly. This will more precisely align the pump and make the pump to case bolt installation easier. Installing the overdrive components is most easily done as a complete assembly. Assemble the entire overdrive section on the bench. Then, using snap ring pliers, reach into the turbine shaft hole. Squeeze the pliers tightly to grip the assembly. Now lift the overdrive assembly using the snap ring pliers as a handle and install it into the case (Figure 2)..."
Figures are gone; by atcdg.com via web.archive.org
http://web.archive.org/web/20050205084953/http://www.atcdg.com/TechBulletins/bull_109.htm