Spirit Doors

I was removing the doors off my Spirit to replace the hinge bushings and to my surprise the doors had to weigh at least 90 lbs! Whats in there lead weights? Is that much added weight due to the door beams? I have been lightening the car up as I am building it and how can I remove those beams? Can I do it without destoying the door structure and totally dismantling the glass, regulators, etc. please any help will be appreciated. Scramboy.

Those doors are just plain heavy. tyrodtom is right. I rigged an attachment for my engine hoist when I pulled the doors to rebuild the hinges.
You would have to totally gut the door. Been there - as I'm doing a full redo of my car, including conversion to electric windows and locks. The window mechanisms are a lot of the weight. The tracks and adjustments in there, that little brace is nothing compared to the door itself, shoot, the window frame is pretty hefty. I've be very surprised if that "beam" was even 15 pounds on these cars. I just don't see it. Pull the latch, the hinges and weigh them. I have swapped window frames on these doors and they account for a lot of weight. They may look small,  but cut one out of a door and take a look at the ends, how that steel is folded and rolled to get the structural strength required. There's plates where the hinges bolt to, the window glass is heavy, the window regulator, etc.
I've gutted and parted some of those doors - good luck reducing the weight by much at all. And frankly, if you remove that, you will be sorely disappointed in the future - rattles, stress cracks in the door skin and structure, flexing and problems with fitment. The integrity will be reduced.
I'm thinking it's more like maybe 5 pounds for that beam you talk of....... I have a door all but fully gutted and could remove that bit and weight it and tell you exactly. It's already sitting by my shop mostly apart, all that's left is the window and regulator (which again is pretty heavy!)
It's your car and your choice - but do give it some thought time and take everything into consideration.......if you plan on those doors holding together well long-term, look them over.
They crack very easily, they rattle and come apart as it is.
It all depends on your goals for the car, what you want to achieve and what you want out of it.
Frankly, I'm adding some structure and strength to mine. Tired of the flex and rattle and stress cracks.

The door skins are removable .   You cut the few spotwelds holding it tight, then either grind the edge off, or if you want to reuse the door skin you can unfold the flange with a little plier like tool. I bought that little tool at Harbor Freight for about $10.

If I'm just replacing the door skin, I can remove it in 5 minutes with a fresh 24 grit grinding disc, and a cut off wheel, on most cars.
I've done hundreds.

The door skin, or door outer panel is just as removable on a Spirit as any other car.

The outer panel is listed in the old parts book as a separate part, and a time, 4.5 hrs, to perform the R&R. Which is about on par for doing the same operation on any other vehicle.

I Have Front Doors For Sale > 1978 to 1987 ( I Think?) 2 DR. Spirit A.M.X. Concord .. Parting out a 1981 Spirit Hatchback > Selling Parts Till The Whole Auto is Sold and Out of My Yard . Asking $250.00 OBO FOR Each Door .. Shipping out of FLorida was quoted $150.00 ( Heavy ehh!)

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