Ford E450 Parking Brake Leak

deprived wrote:
Apparently, this is not uncommon: the drum-style parking brake on a Ford V8 or V10 transmission leaks. Here is a previous thread that covers it.

https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/27650720/print/true.cfm

So, I noticed a tiny dot of transmission fluid on my parking brake assembly yesterday. Leaks tend to get worse, not better, so I'd like to fix this ASAP. The assembly doesn't look too complicated and the seals are cheap and easy to get.

Question: has anyone here done this job? My 2007 E450 shop manual barely even mentions the brake assembly, let alone outlines the R&R procedure.

To head off the inevitable speculation: The transmission is not leaking. The rear seal is not leaking. The parking brake is leaking. I am going to replace the seals (or the whole unit if it comes to that).

Again, has anyone here done this job themselves?

Yes I have done this job. I worked for a Company that had a fleet of City Delivery trucks I was their mechanic.It is a routine maintenance job but if the park brake is leaking. The oil is probably coming from the transmission through the park brake. Make sure you do the rear seal on the transmission output. If it is leaking it may appear to you that it is only the brake leaking. The brake hold a few ounces oil to lube the bearing.