I don't think any car manufacture wanted their cars to last more than 10 years/100,000 miles. Mopars percentage wise last the longest. Then AMC, Ford and GM last. Chevies were popular because they typically were cheaper. They had good body styling (sigh, have to admit that), just too much...
Believe it or not (original is probably dried out by now), Mopar had a little brush with a black light die on it that followed the fist digit circle of the odometer that painted it to determine if the odometer was tampered with. Hopefully others see this and can comment on it. One of those...
Bean counters also started having more influence than the engineers had in the mid-50s through the 60s.
Side note, part of what made (makes?) GM lousy was the bean counters in my opinion. They had decent bodies and ideas, but got cheap with excessive plastic and inferior metals. But you have...
70 Barracuda and 70 Challengers are odd vehicles in a lot of ways. Not to insult 71-74 E-Body owners ( I have a 71 Barracuda), but it's like Chrysler started cutting costs after 1970 to save money or change items to meet ever changing Federal regulations. It's interesting that more 70 E-Bodies...
The floor pans are different, but I'm pretty certain the transmission tunnel is the same or close enough between the 70 Cuda and 73 Charger. It will be covered by carpet.
And yes, more work was done to add the four speed "hump" from the factory. I believe that's why the 69(?) Roadrunner switch...
Hopefully these pictures help! Ignore the speaker in the door panel (obviously not stock!). That's the way we did it in the 80s as these cars didn't have much value then.
Obviously the stock non-clock cover will need a hole drilled in it for the clock adjustment arm/knob. And it needs the red wire as it connected directly to the battery all the time. It will be a parasitic power drain when just setting. Not a problem for a daily driver, but can be if the car sits...
If some one had a quarter with rust problems down low (a common problem) they might have replaced the whole quarter and have a good piece you need. Post a "WTB" add and also ask folks on this site who have documented the restoration of their 'cuda here. I'm betting some one has that piece and...
Definitely have to twist the intermediate gear into place with a big screwdriver! Did you install a new bushing for the intermediate gear? With the factory tool that reams it during bushing install? It's a snug fit when reamed and impossible (without breaking something) to install if not reamed.