A WD45 has a 4.5" stroke while a WD is 4". Late WD has a curved shifter just like WD45 so straight shifter just guarantees it is not WD45. Also odds of finding WD45 with mag are close to zero. I'd have to spend more time to be confident but one reference indicates serial 146607 was first WD45. : Hi folks,
: Does anyone out there know what the basic: difference is between a WD and a WD45?
: Is there a difference in the serial #'s?
: Thanks for any info!