The Ford Barn

Vanspeed · 06-06-2022, 03:02 PM

Thinking it might be a u joint but it was new when I put it in two years ago. Vibration starts around 45 mph, stays consistent but I noticed as soon as I let off the gas pedal it goes away. So it is only under load that I am feeling it. Vibration seems to be coming from under the car. Any thoughts?

Mart · 06-06-2022, 03:16 PM

From recent experience I would suspect the U joint also.
Does it seem like a relatively high frequency?
How many miles since the new joint was fitted?
Genuine Ford?
Needle roller type?
What sort of grease?
How often greased?

Avatar car? AV8?

Mart.

Vanspeed · 06-06-2022, 06:48 PM

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Yes Mart my A-V8 coupe. Stock ford components:
1929 coupe
1936 LB flathead
1939 trans
A rear axle.
Did the swap in 2000. Can’t imagine more than 1200 miles since then. It was as I was told NOS. It was genuine ford. I greased it completely when installed and put some though the fitting awhile back but I am not convinced how well that works. As far as grease I can’t remember what I used.

06-06-2022, 03:02 PM	#1
Vanspeed Senior Member Join Date: May 2010 Location: Suttons Bay, Mich. Posts: 3,392	Strange vibration Thinking it might be a u joint but it was new when I put it in two years ago. Vibration starts around 45 mph, stays consistent but I noticed as soon as I let off the gas pedal it goes away. So it is only under load that I am feeling it. Vibration seems to be coming from under the car. Any thoughts? __________________ *Respecting and Resurrecting Ford Model A's.*

06-06-2022, 03:16 PM	#2
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,765	Re: Strange vibration From recent experience I would suspect the U joint also. Does it seem like a relatively high frequency? How many miles since the new joint was fitted? Genuine Ford? Needle roller type? What sort of grease? How often greased? Avatar car? AV8? Mart.

06-06-2022, 06:48 PM	#3
Vanspeed Senior Member Join Date: May 2010 Location: Suttons Bay, Mich. Posts: 3,392	Re: Strange vibration Sponsored Links (Register now to hide all advertisements) Yes Mart my A-V8 coupe. Stock ford components: 1929 coupe 1936 LB flathead 1939 trans A rear axle. Did the swap in 2000. Can’t imagine more than 1200 miles since then. It was as I was told NOS. It was genuine ford. I greased it completely when installed and put some though the fitting awhile back but I am not convinced how well that works. As far as grease I can’t remember what I used. __________________ *Respecting and Resurrecting Ford Model A's.*