Sierra rear brakes

[Jeze2903]

I'm just about to fit the rear hubs to my car. They are off a 1993 1.8CVH Sierra. I want to replace the brake shoe hold down spings, but not sure what brake system I have. The chappie at my local Ford dealer says it could be Girling or Bendix, but doesn't know how to tell the difference!! The hold down spring kits are different between to 2 system.
Does anyone know how to tell the difference??