Package it up. Set it on the porch
UPS will pick it up from your house/etc for free. Call 1-800-PICKUPS and schedule a pickup. (You can also fill out the paperwork online,
http://www.ups.com)
They will ask the to/from, dimensions, and weight (you can ... bend the truth). The most they will ship is 150pounds... Somehow my 220pound transmission miraculously made it though, I think there was an "error" stating it was 120pounds.