Where to find shock bushing adapters for Blur 4X?

What shock are you running? Are you looking for spacers based on the model of bike or by the size of the spacers? They're easier to find generically just by the shock eye size, bolt mount hole size, and the width of space you're trying to fill on the frame. Are those 6 X 22, 8 X 22, or a similarly common size?

I thought you could order direct from SC?

Shock

Current ones on my Fox R are 18mm wide total, and bolt hole is just over 9mm.

The 4X uses the same funky size as the Nomad for the bolt size?...3/8"?...which converts to 9 point something mm's.

If in the UK try www.tftunedshox.com they have a special section for 3/8 bolt hole sized bush mountings.