My rear end has a heartbeat

[dart6]

Would anyone like to hazard a guess as to what sounds like a heartbeat coming from the rear axle? it's a bone stock 68 RR, new tyres and alignment.

Best i can come up with is the lsd. The pumpkin is a 742

 

[OneWheelPeel]

Video has to be set to Public

 

[dart6]

Video has to be set to Public

Hopefully it is now

 

[OneWheelPeel]

I can play the vid now, hopefully someone with better ears than me will have an idea.

 

[1 Wild R/T]

Are the lug nuts tight?

 

[moparedtn]

This would be a good one to figure out a way to mount a GoPro under there, aimed at the diff...
Take a drive and see if anything is evident externally.

 

[dart6]

Are the lug nuts tight?

yep

 

[dart6]

This would be a good one to figure out a way to mount a GoPro under there, aimed at the diff...
Take a drive and see if anything is evident externally.

Yes it would if i had one

 

[icetech]

I know the lugs are tight but that 100% sounds like a loose rim.. i would pull the lugs anyway to make sure you don't have some ovaled out holes in a rim, check the fronts also..

I would put it on jackstands pull the rims/drums and turn the driveshaft by hand and see if you feel it then.

 

[dan juhasz]

New tires , inner wheel weight touching something? I’ve had that, sounded that way.

 

[1967coronet]

That does sound like a loose wheel.
Check all 4 , jack them up 1 at a time and give a good yank on the tire and wheel.
Did you get wheels or and new shank style lug nuts with the tires ?
If you have mags sometimes the shank style nuts can bottom out before the wheel is tight if they used the wrong length.

 

[Ron H]

Sounds like a bad tire cord or possibly wheel imbalance. Had a similar sound when a piece of road tar stuck to a tire.

 

[1967coronet]

I was not sure if that video is on the road or sitting in the shop with the rear up in the air ?

 

[WileE]

I was not sure if that video is on the road or sitting in the shop with the rear up in the air ?

I was JUST going to post the same question.

 

[Dave6T4]

My first thought was; that's a weird place to take your pulse. LOL

 

[dart6]

I was not sure if that video is on the road or sitting in the shop with the rear up in the air ?

Yes on the road. I’ll jack it up and check each wheel

 

[ckessel]

I have/had something like that in my wagon which I believe is the axle bearings. The rh one, both are the Greens put in by the PO, had lost the outer seal allowing grease to venture out where it's not welcome. Changing that mess back to Timken's. Something else for you to check which I ran into while working on a friends Rat Rod. When I pulled the lug nuts off, I saw a shiny ring on the end of the stud with a corresponding mark on the closed end lug nut. Has chrome reverse wheels. When I took the rotors off to swap out the bearings and clean the friction surfaces of rust, I ran one nut down by hand till it stopped. Had more of a gap between the nut and rotor than the thickness of the wheel. So, nuts were tight but not enough against the wheels. I mowed the tips of the studs down with a flap wheel. Now the nut bottoms out on the rotor. Check yours out.

 

[WileE]

A rear end with a heart beat, eh ? All I can think of is,