View 0 Photos View 0 Videos Allison AT545 Transmission for a 1992 Gm/Chev (Hd) TOPKICK Contact for price TRANSMISSION CORE ASSEMBLY. OK FOR PARTS, Serial#: NONE, Engine Make: GM/Chev (HD), Engine Model: 366 EFI, Casting#: NONE ConditionUsedEngine Model366 EFIFits To Make(s)GM/Chev (HD)Fits To Model(s)TOPKICKWill Fit Year(s)1992Stock Number122615-18 MLS Number9001654CategoryTransmissions Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info