Wayne here is a link to the ice hockey puck that all pinch weld adaptors are made from
http://www.ebay.co.u...=item2c6afd3573
They are solid rubber and all you do is cut a V shaped grove in the top to the depth of the weld on your cars sill where the standard Ford jack goes.
This then sits on the flat plate of the trolley jack and up she goes. Trust me they are very stable and I have been using them on many cars for years !
You can buy them ready cut for around ten quid but the depth of cut may or may not suit your car and anyway its a very simple job to cut one just right for your car..
We have several cars and I have one for each car custom cut..
Lift one side pop your axle stand in place then lower the car onto the stand and repeat the other side of the car....
NEVER go under a car without an axle stand in place ! But you already knew that ............... 