Been out driving my t a little bit. Hearing a noise that speeds up and slows down with the speed of the car. Kind of a wahwahwahwah sound. I’ve replaced the rear axle bearings and repacked the front bearings that looked in good condition. Don’t think it’s those. Could it be driveshaft bearings?u joint? Any input would be welcome, thanks
My Ruckstell rear axle makes a similar sound because my ring gear runout is on the high side of the allowable tolerance, I should have been more careful when setting it up during assembly. The backlash and gear pattern are OK, so I just put up with the noise. You might want to jack up the rear end and pull out on each axle to see if there is excess movement, may be an early sign of an axle thrust washer going out. Does your rear axle have the newer bronze washers, or the original babbit? The babbit ones can fail over time.