Update:
My JD 110 TLB is back up and running. After the dealer quoted a repair cost of $16,000 I thought for sure that I would have to scrap it. After getting it home, and spending about two weeks thinking about, I decided I couldn't make it any worse and decided to try to fix it myself.
Ironically, one of the reasons I bought the thing was to prep an area for a garage, so as you will see in the pictures I did all the work outside in my yard. By the way, not a lot of fun in Vermont in the winter.
The basics of the problem was that the prior owner(s) not only did not take good care of this machine, they took steps to hide damage. For example, they cut the heads off bolts and epoxied them to holes to make it look like they were properly installed. Every hole in the the oil pan extension was stripped. Because the front of the tractor bolts to the oil pan extension, it was out of alignment which caused the pump coupling to break which resulted in the hydraulics quitting. Where the loader arms attach on the left side the holes in the bell housing were stripped out and the holes in the transmission were broken (cast). On the right side two of the holes were stripped and one hole had a broken bolt still in it.
For the repair, I split the tractor and pulled the engine. Changed the oil pan extension, at $475.00 the most expensive part. I did not consider fixing the stripped holes in the extension given the total number of holes and the critical nature of how everything is tied into it.
I used M16x2.0 24mm timeserts to repair the holes in the bell housing. I used 38mm long timeserts in the transmission case so that I would have deeper bite into the transmission case. I made sure that I was not going so deep as to be into the inner part of the transmission. I then purchased over length bolts. Getting the broken bolt out on the right side was a PITA, but after about 2 hours I was good to go.
While doing the work I found a lot of loose bolts and missing hardware. I replaced any bolts that had any signs of wear, stretching, or damaged in any way.
Reassembled and it fired right up. My wife stood there looking puzzled. She didn't understand why it sounded different. I told her it was because it wasn't rattling anymore.
Total cost of repairs: just under $1100.00 with about 45 hours of time. I will be posting pics in just a few minutes.
http://www.tractorbynet.com/photos/member.php?uid=105416&protype=1