ok guys
new to all this large scale , so be easy with me lol
right got a second hand marder to play around with , took it out tonight and found that the upper and lower screws holding the steering arms to the hub kept on coming loose

, bottoms more than the tops , have screwed them back up but seems the plastic hub carriers arent good enough to keep the threads , now i know thread lock wont hold them in so whats an alternative apart from the obvious alloy hubs

,
thanks in advance
rob