SP/SSW What decals for Southern Pacific GP60?

Microscale O Scale Rebuilt GP40 Decal Set - Southern Pacific w/Speed Lettering 1991-96

I'm thinking that will work, but not really sure.

 

Depends on what units you are doing.
The first three orders of GP60's, numbered #9600 to #9714, were delivered in the standard RR Roman lettering. For those you would use decal set #48-7.
The last couple of orders for GP60's numbered #9715 to #9794, were delivered in the Speed-Lettering. For those then you are corrrect in using decal set #48-166.

 

Thanks! I haven't even done my research then. I never realized that some had standard lettering.