jim williams

My son bought a 1956 oldsmobile super 88 two door hardtop that had sat out in the alaska weather for several years. The chassis is terribly weathered and rusty and in basically terrible shape. The body and interior have excellent potential and is all there in fair to good condition. I have heard there are GM chassis that were the same as the '56 olds chassis used on other GM cars. Where he lives there are virtually no '56 oldsmobiles so does anyone know what other chassis would exchange and fit under his olds? Thanks