Hey Y'all, When I owned my Toyota's I could find mechanical speedo recalibrators' that connected between the transfer case and the speedo cable. You needed to supply the original gearing/tire size and the final gearing/tire size. They would make the unit and ship it to you. They were, overall, pretty accurate. Does anyone make these for Chevies? If so, who? Anyone running them? If so, how do you like it? I'd appreciate any input. Thanks! Manny Yeah, I know that my speedo is 7 mph off on the slow side. It would just be nice to be dead on for a change.