1969 Valiant, 340...TCI 727...8 3/4 w/3.55

ok...lol.....im a man ill say sorry cuz a man that is wrong should say so..i was raised right but in MY OPINION>>>i wouldnt pay 10 k for something that doisent eeven run smooth..that vibration could cost thousands to fix no one person can tell u what it is trial and error so lowvalling is good due to the car no running in pristen condition....and i do have money now but i build all my own **** and i was raied withj no money so ...my too cents

Impressive.

I respect your opinion.

My opinion is the vibration is either torque converter or balancer.
I definately lean towards that because the car idles great. The cam lopes, but the engine is smooth. The vibration shows around 40 MPH. We have had a new driveshaft built (old was out of balance, VERY SLIGHTLY). We have added a newer center section (was 3.91 but the center pin wallowed out. We added a Lock Rite to a 3.55 that was in good condition. We balanced all 4 tires.
Next up, is to swap out the axles, in case one is bent, and try a different set of tires. We are taking all the steps to try to eliminate the problem.

IF anyone has another ideas, we would love to hear it. I am dying to tkae this down the strip, but until this problem is solved there is no way I am running it up to a hundred MPH.

A buyer could negotiate a better price, fix the issue, and have a very presentable A body, with good parts, for less the the cost to build, In My Opinion.

Good luck with your Duster sale.