I was reading about build codes on here, I didn't know till then that tractors had them. I'm very fluent in tractors, and mechanics especially for a Junior in high school, but I am still learning. I was wondering do 88's and 66's have these codes? If they do where are they located? I own and took over our family's farm and I converted us to vegetable production, I still use our Oliver 88, which is kinda a strange bird she has a Super 88 engine and seat, and they back side panels have the decals of Diesel, Super 88, and the Oliver oval decal on them all under the current paint. Thanks, Mike