01 Honda Civic VIBRATION

2001 Honda Civic EX, VTEC 1.7L, 5 spd, 132,000 miles. When I drive between 55 -70 mph, I get a vibrating sound of "rump, rump, rump, etc" in the front suspension. The vibration is coming from the front of the car to the rear. The faster I drive the more constant it gets. I already replaced the right front wheel bearing, all bushings in the lower control arms and stabilizer bar(Dealer parts). I also replaced all four rims and tires with aftermarket - stock size, - still the same sound.
Then a rebuilt both axles, they had no core so they rebuilt mine. Someone told me that my inner CV joints could be out of balance. If they rebuilt both my axles, would they have fixed the inner joints? -Because I still have the same vibration.
Please HELP, I am desperate, Should I get different axles or is there anything else. Thanks - Andy