The bushings can be ordered on my web site. Ken OConnor Racing, High Performance Motocross Engines, Performance Modifications, Motorcycle valve jobs, Motorcycle Crankshaft Rebuilds, Motocross Cylinder Porting, Motocross Cylinder Head Porting.
Go to the blaster link and click on the 400EX bushing link.
I can ship to Canada no problem.
thanks
Ken