Replacing Modify Smooth Bearings

[Laskerdisc]

I bought a 7mm gearbox, but a 6mm ftk. Modify has 7mm bearings for the gearset so I figured that it would be simple to replace. I have replaced all but one and the last one is being incredibly stubborn. It's the one that sits on the plate behind the bevel gear. I've tried to use vice grips, but I can't get it tight enough to unscrew the nut.

Anyone have any ideas?

[etd]

I am havin the same problem. Same bushings nut too. I tryed a clamp but in the end I just left it as a 6mm and moved the rest to 7mm. It's causing premature wear on my pinion gear eo if anyone can help it would be greatly appreciated.