International SyTy Registry

GMC Syclone, Typhoon, & Sonoma GT History and Data

Conversion trucks are considered trucks that started out as a production truck, but later modified either by GM/PAS or an outside third party. Both...

Conversion trucks are considered trucks that started out as a production truck, but later modified either by GM/PAS or an outside third party. Both the Syclone and Typhoon had variations done, with the Syclone having more known conversion variants.

SYCLONE
TYPHOON
  • Saudi Typhoon Info
  • Indy Typhoon Info
  • Geiger Typhoon Info