What's the latest on kits for this? I see these: http://www.driveshaftsuperstore.com/slip_yoke.htm but I don't really get it. Does it just attach onto the same output where the slip yoke currently is and mount somehow? If so, the length would be the same, so not much benefit except being able to drive home on the front wheels. I think I've seen plugs for sale someplace, and probably cheaper than $550. I've already got a CV slip-yoke shaft.