BMAX 4III rear facing roll bar mod...parts?

[andrewc]

Hi all...

My Bmax4III has the rear facing roll bar mod as seen here:

http://eos.redrc.net/wp-content/uplo...02/Ada_CF3.jpg

BUT...currently mine isn't nicely mounted as in this pic, it's under two washers on the two rear bulkhead screws, and moves from left to right, occasionally popping off at the wishbone.

SO....what part (the two small black brackets that the bar runs through) is being used to 'properly' mount the roll bar to the top of the bulkhead in that photo?

Thanks