8150 RD pulleys

[wettek69]

Gidday guys

I went to put a new set of 8150 pulleys on, and they look identical, and have no G or T marked on them. Can anyone confirm if they are identical and obviously then interchangeable.
I was always used to the writing being on the inside on both, but going on the directional arrows one is on the inside, one outside. Anyone able to check their RD and advise?

Thanks and regards.

[kode54]

Look at the pulley teeth shape and match direction accordingly.