Sure, Either email or here, Others may be interested here...
The transmissions you are interested in are the smallest version of a Roadranger. The "RT" stands for Roadranger Transmission, "RTO" stands for overdrive Roadranger Transmission.
You are looking for a RTO 610 or 6610, the 66xx is a newer version, slightly quieter and stronger, same case just different finer pitch gears. These weigh 357lb
There is also a 613 and 6613, a 13 speed, adds an extra 200LB (554lb total) and gives you 3 even lower gears. I would not consider these transmissions as the extra weight is not justified by the usefulness of the 3 lower gears. If you were always heavily loaded and drive off road some the 13 speed may be a good idea. These also offered as direct or overdrive, (RT or RTO).
You could buy a new, available from Fuller, RT6609A, nine speed NOT available as an overdrive. I believe they use essentially the same case as the 6610, but somewhere they pick up another 15lb, I have not seen one in person.
The 6xx / 66xx series transmissions don't appear on ebay very often, and rarely as an overdrive, I am always looking.
Right now there is an expensive RTO6613 on ebay
http://cgi.ebay.com/ebaymotors/FULL...itemZ280148092775QQrdZ1QQsspagenameZWD1V Also a non overdrive RT6613 from the same seller.
There have been two different RT613 transmissions for sale for the last month or two, this model would be on the very bottom of my list of choices. Here is one of them, I was 3 miles away from this one a few weeks ago, with a truck and trailer, he would not come down on the price, I left it there.
http://cgi.ebay.com/ebaymotors/GREA...itemZ320157364414QQrdZ1QQsspagenameZWD1V I do know of a reasonable deal on a rebuilt RTO6610 with a warranty if you are serious about this...
Grigg