I'm looking for a part number for a upper radiator hose for my 70 skylark gs 455 with twin air snorkle air clean "stock looking " Not flex hose" and I'm missing my speedo gear for this car . the car has a th400 trans and a 10 bolt I don't know what it has for "stock rearend grears" . what is a good speedo gear to try I was told brown???ou: