AT kickdown linkage for 72 Duster

all you need is the upper rod and cable bracket from a 4bbl police car 76 though 80 F-body. There are many out there.

I just did what you are doing. Made both pieces. Using two 2bbl brackets and two upper rods. I also still have another one still in shop that was done using 4bbl upper rod and two cable brackets not buy me but it is here for pics if you need some. The lower lever is different on 69 and earlier models . That to may need to be addressed depending on the carb fulcrum. I have tons of rods and brackets if you need some to modify Cheap. Welder and a vice is all yo need.. The cable stuff works but the life is limited and geometry worse. They don't care about the lever length or carb fulcrum one style fits all?? Some never work correctly

Rule of thumb is Eye to eye Carb and trans lever. upper rod should just fit on the carb when at idle and flat out