My "new" '74 Duster- or why I need a project like a hole in the head

I’ve got to agree. Was talking to a buddy just today and said someday I would like to build a ‘71-72 B-Body Plymouth and said “Oh, you want a Roadrunner”. I said no, just a basic Sebring or Satellite so I don’t have to feel bad about modifying it. No idea if I ever will, but right now I only have my Duster so it’s not like I have a bunch of projects waiting in the wings.

I have no issues with modifying my car, until I have to cut sheet metal. Some is ok, like the sub-frame connectors it has, and I am getting closer to being ok cutting the floor for a T56 but not all the way there yet. Taken a lot of years to get to that point.

T56!?

That's jumping into the deep end right there. That would have to be the least reversible mod I've done so far, and more than a little cutting and hammering! Tunnel sheet metal, the whole transmission crossmember, wiring for all the lockout stuff, pedal mods for the hydraulic clutch, etc.

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Although, it's probably one of the best mods I've done so far for actually using the car. It's so nice having a modern transmission and the overdrives. And of course almost ANYTHING can be undone, AMD makes floors and crossmembers. To me the function is worth way more than the "originality" or the possible resale. Of course, that being said I kept the 904 in my GT because of the numbers deal. But it would get sold long before my Duster, I'm not worried about the resale on the Duster at all. I get way more out of it than money.

Awesome work! I'm so jealous as to how much tire real-estate you get on the Duster. I just got my Dart back in my garage and have to look into options now that my car is running well.

Yeah the extra room is nice! If nothing else it gives me some more options when I have to buy the next set of tires, I can go a little larger if the tire availability works out that way. But once you go past 275 the options start to get limited. I like the 27" tall tire out back now, and that really limits the choices.

The Dart's are pretty tight, even with a 1/2" offset a 275 is pushing your luck with body tolerances on some cars. Of course with a mini-tub and 3" relocation the sky's the limit, and that stuff is all available aftermarket so you can do less custom fabrication if you want. The big tires look cool, but they cost a lot more and really unless you're pushing a ton of power they're not all that necessary. Especially on a handling build, you're still limited by what you run up front in the corners. On my car I don't think going bigger than 295 would actually make it any faster. With the weight balance on these things I'd probably be better off trying to get a 285 up front than a 325 out back.