I will be putting together a 77 gremlin X using the powerplant from a 76 Hornet which is too rusty by my CA standards to save. The Gremmie is a little sunburned orange (actually sunburst orange) with black and orange (so 70s) interior that should clean up nicely. I pulled the locked up 258 6 out of the car today and noticed that a placard on the 904 torque convertor says "high stall". Does anyone know if AMC used a higher stall convertor in the sporty models such as a Gremlin X? What would be a typical stall speed for the convertors? Does anyone have specs? I have a 76 TSM and many sections of the 77 TSM but I don't have the power train section of it. Regards, Joe Fulton Salinas,CA