2 zones of vibration.

[Lawrie]

Rob, look at my post on this date 6-13-2014 at 04-27 PM, drive line vibration, it has all the fix and pics.
Lawrie

[RobR'35]

Thanks Lawrie.
I looked up past posts and it takes me back only to 2-22-16. Not sure if I'm missing something in looking back at past posts. Also only goes back 20 pages.....
New tires arrived today and I've an appointment to have them installed this Fri.
Looked up on Coker, they're recommendations for installation. I ended up ordering the Excelsior 6.00X16.Interesting stuff on links to u tube.
Lug centric vs hub centric, match mounting, road force balancing, massaging the bead, that's a complete new thing I've never heard of! both sides of wheel for weights.....lots of good info.
That Corky fella at Coker seems quite a character!

[rich b]

Lawrie's referenced thread

https://www.fordbarn.com/forum/showthread.php?t=141800

Guess this was the wrong thread, sorry.

[RobR'35]

How did u go about finding posts that far back rich b.?
And thank u.
Lawrie had mentioned an even earlier post. 6/13/14.
I believe it pertains to drive shaft straightening...

[RobR'35]

Was actually a post three days later....... in 2014

[rich b]

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Originally Posted by RobR'35

How did u go about finding posts that far back rich b.?
And thank u.
Lawrie had mentioned an even earlier post. 6/13/14.
I believe it pertains to drive shaft straightening...

I had the same results as you did, searching for "post"; I then searched by threads he started; but looking back now, I see they are organized by the date of the last response. Not real useful by that criteria; search sometimes not very handy on here. Maybe easier if Lawrie could post a link to the thread.

You had said the vibration remained in the same speed ranges both in low and high rear axle; wouldn't that place it beyond the driveshaft since it's speed would have changed with the axle shift.

[JM 35 Sedan]

Rob, I found this old post on axle housing bearing race/stub diameter spec.

https://www.fordbarn.com/forum/showt...aring+diameter

[RobR'35]

Beyond meaning tires/wheels?
New tires to be installed tomorrow. We'll see what comes of it.

[RobR'35]

Thanks JM 35 Sedan.
Looks like that was the larger wheel bearing and hub.
Was that phased out to the smaller wheel bearing in '35?

[JM 35 Sedan]

Originally Posted by RobR'35

Thanks JM 35 Sedan.
Looks like that was the larger wheel bearing and hub.
Was that phased out to the smaller wheel bearing in '35?

The EFV-8C/A 1935-36 Ford Book states that the larger 3-3/16" OD (#B-1225-A) rear wheel bearing was initially carried over from '35 production, and then a new smaller 2-13/16" OD (#68-1225-A) rear wheel bearing began use early in '36 production, replacing the larger bearing.
The inner bearing journal on the axle housings remained the same at ~ 2.062" +/- 0.001" diameter.

[RobR'35]

Yesterday I took it for a cruise.
Long nice smooth straight stretches with some slight inclines and slight down hill.
Run it up to 70, press in the clutch shut it off, let out the clutch. Vibrates in the "zones".
Ford gears and in Columbia. Clutch presses in or not, up and down hill. Vibrates in the "zones".
New rubber tomorrow.
Going to have the wheels matched to the tire, lug centric,
wheel weights on both sides if needed, road forced balanced, I'm trying to cover all bases possible with the tires and wheels.
If that doesn't do it I'll tear into the drive shaft and axle assembly again.
I really appreciate all the help from u guys.

[FlatheadTed]

One thing I do when fitting the clam shell is check it for play and if so pack it with a thin Teflon shim ,any ware there and movement allows the end U joint to jump up and down ,Ted