GP60B BNSF #347 has been converted into a standard cab GP60. Reportably it has a new road number as BNSF #170, which places it above the wide-cab GP60Ms.
http://www.locophotos.com/Read.php?ThreadID=17424
BNSF’s other former-ATSF standard-cab GP60s are numbered in the 8700s. I wonder if the GP60B’s original dynamic brakes were moved to the long hood too since the dynamics would need relocating to make room for the cab? I don’t think any photos of this converted GP60 have showed up on the net yet.