13secmini had the same problem (but at front) when he put Rover wheels onto Honda brakes.
I got 2 steel spacers (6mm thick) from a Fiat 124 and redrilled them.
Many european cars used these.
Most spacers I've seen hanging in shops are those things with the 4 slotted holes in them. Might fit, but check the slots are not too wide.
Yes, I know spacers are supposedly illegal/unlawful.....

but at least these don't have the nasty and dangerous screw on extension studs...

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
