[Sarg]

30373T Comp Wheel, To4E/40, Big Shaft
20574T Comp Wheel, To4E/40, Spr, Big Shaft
30374T Comp Wheel, To4E/46, Big Shaft
20575T Comp Wheel, To4E/46, Spr, Big Shaft
30375T Comp Wheel, To4E/50, Big Shaft
20576T Comp Wheel, To4E/50, Spr, Big Shaft
30376T Comp Wheel, To4E/54, Big Shaft
20577T Comp Wheel, To4E/54, Spr, Big Shaft
30377T Comp Wheel, To4E/57, Big Shaft
20578T Comp Wheel, To4E/57, Spr, Bs
30378T Comp Wheel, To4E/60, Bs
20579T Comp Wheel, To4E/60, Spr, Bs

What is the Spr designation mean?

[Sarg]

I am guessing this designates the large "super" wheel correct? Do you have and of the compressor maps for these?

[Robert]

Originally Posted by Sarg

I am guessing this designates the large "super" wheel correct? Do you have and of the compressor maps for these?

Yes it designates the larger Super wheels. I don't have a map. See your other post.