Gentlemen, the 800 series boxes came in various cars. They are the better/ stronger unit between the 605 and 800 series boxes. However, not all 800 series boxes are quick ratio boxes. Cars generally equipped with F41 suspension...Buick GN T-Type cars, Monte Carlo SS, Olds 442, H/O, IROC, Z28, and GTA F-body cars all were equipped with the closer ratio box. Standard Cutlass', Monte Carlo , Malibus, El Caminos, and Pontiacs were probably equipped with the standard ratio box unless ordered with the F41 suspension package.
Is there any way do tell if it's q quick ratio box?