2 and a half years into my lockdown project and another problem. Bike is a 76 CB550f. Problem - There is not enough space between the slim headlight shell I have and the ignition switch for it to fit (touching). I have been told that the headlight ears I have are probably from a CB500, not a 550f. Are they different than those on a CB550f length wise (forward reach)? Have I fitted the ears upside down? they currently are pointing slightly upwards with the big flange at the bottom and the smaller one at the top and look right to me. Looking at it, reversing this may well drop the shell a bit and give enough clearance for the headlight shell to fit. If I have the wrong ones, will the correct ones solve the problem though where I will find any - nobody knows. I am in the UK. Any thoughts?? Thanks, Peter