Lookin for 3650's on ebay I came across these pics in one of the auctions.
Looks like the tork tech pulley system.
http://cgi.ebay.com/ebaymotors/Ford-mod-motor-5-speed-transmission_W0QQcmdZViewItemQQhashZitem3ca6d1ec0cQQitemZ260496813068QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
Looks like the tork tech pulley system.
http://cgi.ebay.com/ebaymotors/Ford-mod-motor-5-speed-transmission_W0QQcmdZViewItemQQhashZitem3ca6d1ec0cQQitemZ260496813068QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories