Well after reading the following post a few weeks ago, http://forum.62-65-dieselpage.com/ub...c&f=7&t=003115, last week I noticed fluid around the top of the shock tower, and running down the inner wheel well.
I took it into the dealer today.. sure enough...it was the hydraulic power brake booster assy. leaking all over. Oddly enough...the brake fluid reservoir was still full....hmmm. The good part is it was under warranty...the bad part is that it melted the wax off of the chassis and I now have lots-o-metal exposed. I thought about just picking up some black primer or maybe undercoating and dosome touch up. Any suggestions....

Replacement part number 15757280 Booster 4.805

No TSB known.

Rgds,
Don