Type 81 brake conversions?

[Kit]

I was wondering how similar the components are since the rear drums need new shoes on my 80 and one of the front discs looks like it's been hit with a hammer on the flange so I was wondering if I could go for a front and rear golf mk3 gti brake/5x100 stud setup?

Or maybe just a 4 stud 16v mk2 golf setup?

Apparently the 4x100 audi and vw discs are not interchangable?

It's a 1984 Audi 80, 1.8 DZ, Sport, Type 81, B2

[sam80quattro]

pretty sure you could do a b3 swap. 280mm ish fronts and rear disc conversion, that'd be 4x108 though, my mate runs a 300+ bhp type 81, fwd and he has standard rear drums and golf g60 280mm fronts with yellow stuff pads and says there absolutely amazing in terms of stopping power

[Kit]

hmm sounds good, which models of B3 have got these brakes?

[Kit]

Would a 1990 audi 80 16v have the required bits do you think?

[Val]

no, b3 16v isn't typ81 or typ85 and it don't have 4x100 wheel pattern.
your mentioned car have only 245x10mm rear disc brakes.
and biggest brakes is from b3 90 w/ 7A = 276/25mm front brakes.
G60 rear is only 226x10 w/ 4x100.