Nop, I did mine with a lwb set
I turned it back to front though as it fitted the roof better for me as wanted it further forward.
See my photo bucket link I think there be a pic or two there:thumbs
To save you trawling through all my mods here be a pic for you
If you want to carry proper heavy loads dont turn it round and keep the curved part of the foot at the back where it's meant to be:thumbs
I wanted mine up front for the lights bar, that's why I turned it round.
I got an ex military(found it) plug and socket jobbie It's in a fancy camo alu finish and I fitted the socket to the roof. The lights are on a short cable with matching plug, so just screws into socket:thumbs It's all waterproof.
So I can take the roof bar off inc the lights if I want to
Remember the ampage is pretty high on 4 55watt bulbs:augie so you need a decent bit of kit
I originally had 110watt bulbs and melted the old socket:lol