If you own a CATERPILLAR CAT GC35K, GC40K, GC40K STR, GC45K SWB, GC45K STR, GC45K, GC55K, GC55K STR, GC60K, GC70K, GC70K STR FORKLIFT LIFT TRUCKS CHASSIS,This Service Manual has easy-to-read text sections with top quality diagrams and instructions. Caterpillar Cat GC45K STR, GC45K Forklift Lift Trucks This service manual is a guide for servicing Cat Lift Trucks. For your convenience the instructions are grouped by systems as an easy reference. This Original GC35K - GC40K/40K STR - GC45K SWB. GC45K STR - GC55K/55K STR. GC60K - GC70K/70K STR. Specifications. Engine powered lift trucks. 3.5 - 7.0 tonnes