1973 Plymouth Duster repair and rebuild

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So I am finding out that it seems to be difficult to replace headlight and wiper switches. It maybe time to investigate modern replacements as alternatives.
 
Now to transmission issues. Will update soon.

Currently sorting out how solid the 904 is. It doesn't seem to like shifting into 3rd gear. I know that adjusting the kickdown is always recommended in this situation. I am also considering that the fluid is over 10yrs old, and for that time at least the car has not ran. Need to get a couple of quarts to top off the transmission, then test drive again and see if that goes away before attempting to adjust the kickdown.
 
I had to fix the throttle return springs as they were not strong enough to return the throttle all the way back. Since I built the cable bracket holding the lokar throttle and kickdown cables, I had concluded that I must not made it far enough back from the throttle plate, as such I drilled a small hole on the upward facing edge forward of the original spot that the springs currently used. After moving the springs forward to the new hole (about 1/2 in), now the throttle returns back properly. The picture below is prior to the new hole being drilled.

Regarding the shifting issue, I found that the fluid though old was still cherry red even after a few miles of driving. I just didnt like to shift into 3rd. So I opted to put 2 qts of ATF-4 in it which brought the level just over the full line. And using ATF-4 added a fluid modifier to the transmission which I am counting on only being helpful if possible. What I did find was the kickdown cable was back away from the adjustment piece and up against the edge. The little cover on it had slid all the way down the cable as well. I placed it correctly in the adjustment socket (have no clue what to call it), and took for test drive. Where it shifted into 3rd with no issues.

I need to get under the car and grab that little piece which covers the end of the cable and bring it forward again. I may use some form of epoxy to secure it to the end of the cable. I am surprised there isnt a requirement to crimp it or something. Both my throttle and kickdown are able to do the same thing. So far the throttle cable looks good.

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