Firm Feel stage III, go stage II, you'll wish you went stage III, I have a Firm Feel stage III on my 70 Charger, awesome steering response, "steer" clear of Steer and Gear's boxes, the last box I had grenaded after 3 yrs of use, and the other Steer and Gear boxes I used on assorted restos were less than stellar in comparison to the Firm Feel box