where can i find this?

[dougie30]

number 4

[gearheadE30]

Pelicanparts probably has it special order, otherwise I'm sure someone on here is parting an E30 and has one. They aren't exactly highly demanded parts. Maybe check ebay.

[Xat1cZ]

have you looked at either of these two?

http://www.fcpeuro.com/

https://www.pelicanparts.com

[dougie30]

checked pelican and german auto parts. but that fcpeuro web site is pretty sweet!

[Fusion]

I think aftermarket only sells them in the complete shoe sets, not separate.
But I could be wrong.

[CabbE30]

Pick n pull