Engine Vibration at highway rpm/speed

Mr. Gorsky, your video really helped. those appear to be the same exact drums that I bought. so I decided to give them another look. One of them has grinded on the backing plate since the beginning, but I took that one off and put the original back on months ago. Then recently when I did all this work to the third member I put it back on and thought it'll just grind down eventually and it did. also one of them had a HUGE amount of balancing weights on them, while the other did not. so yeah....crap drums i'm sure.

anyways.....I got the new tires mounted and balanced and before I put them on the rear I took off these new "china" drums and put back on the original Chrysler bell shaped drums. I had to adjust the shoes out too.

so now I have the original drums back on.....and new tires/rims. BAM 80% of the vibration is completely gone!!!! I can't believe it! drums/tires mimicking a driveshaft out of balance. crazy!

so for the other 20% vibration I can still feel, and mind you it is VERY tolerable, I'm going to have the pinion angle checked over soon.

Man, the car is like a whole different beast, especially with these new rims. and wouldn't you know.....I had some old dog dish caps that my Uncle gave me for my old 69 dart (long gone...both uncle and car) and I like them better then the red circle ones I have.....the red clashes with the orange....these ones my uncle gave me are just black, although faded a bit....the stainless is perfect and no dents at all....might be the cop version. idk. but I like them.

also as a side effect of the larger rims and slightly taller tire...the car is higher and the deep pan on the trans sits higher now.

Thanks SOOOO much to everyone for the suggestions and the information. the pinion angle will be checked next! FABO 4EVER

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