Rear GN brake shoe upgrade parts

[tpsecret6]

Can someone help? Looking for part no.s for the bigger wheel cylinders and the shoe kit that would include two long shoes for the rear of GN. Can someone give estamite of total cost also. Do they grab and lockup during street use or just a myth?

 

[nova]

I just bought two sets of rears and used the long ones, then returned all the short ones as cores.