1999 GM/Chev (HD) GM Hydramatic, Truck Delivery, Automatic Shifter Assys, Fits to: GMC W4, (Used) 1999 Gmc W4, AUTOMATIC SHIFTER ASSEMBLY- Make: Gmc, Type: Automatic, Transmission: 1998 Gmc Gm Hydramatic, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# 39790, Casting# 39790, Truck Year 1999 4KDB4B1R0XJ000246