pictures of pedal assemblies 340 vs. others
I have a 71 340 duster that was changed from auto to 4 spd. in 1974 They used all new parts. They installed a 1973 pedal still has the part tag on it. You could not pull a gear with this car if your life depended on it. My son destroyed two transmisions before we figured it out. If you have the short throw pedal . all you need to do is add 3/4 to the arm side and run a diaphram clutch since you won't have the spring. Or start doing leg lifts with the left leg. The artical on this is in Mopar Muscle Dec.2010 Tech you need to know (A-Body clutch pedal fix)