It's a one piece extension bar, 9/16 6 point socket one end and a 3/8 square drive the other (on the one we bought anyway). It would have worked with an impact gun - if the piece of poo Hawk impact gun I bought from ebay would have actually had some guts, seriously don't buy a hawk 14.4v cordless impact wrench it is useless!
We spent a weekend with lots of swearing and being fought the whole way by a 110 Defender that really didn't want to play nicely but in the end we got the prop off, replaced the broken handbrake cable, changed the hand brake shoes/springs/virtually everything in there, fitted the straight through middle box, set up the hand brake properly and refitted the prop. All done on the floor outside my council garage, seriously proud of my son
@OMeredith54 for getting stuck into it and battling through even when it seemed the whole thing was against us.
A question though, sort of related - the Defender came with one of those (in my mind) unsafe and lethal farm jacks - ask him about the handle print on his cheek! Is there a safer alternative or is it just a case of having a bigger foot on the bottom?