I put a brand new 2166_2366 model CIH chopper in 1998 into a 1981 1460. Other than having to buy a 1460 quill shaft the entire chopper bolted in as a factory installation. I have never looked back. It made a real combine out of the 1460 for soybeans. I suggest you buy the new CIH chopper for the 2388. Everything will fit right out of the shipping crate. Usually you have to order one 3-6 months ahead.