[AT] OT truck tires/driveshaft?

[charlie hill]

John you probably don't wind that truck up through the gears any more than
necessary and shift to high gear at a relatively low speed right?
If that's the case try running it in 3rd gear up to maybe 30 mph and see if
you get the vibration at a lower speed than you do in high.  That will
accomplish the same thing as running the rear in low range (if you had one).

Charlie

-----Original Message----- 
From: jtchall at nc.rr.com
Sent: Sunday, May 11, 2014 8:25 PM
To: Antique tractor email discussion group
Subject: Re: [AT] OT truck tires/driveshaft?

Was so sure it was/is a tire issue we only did a slight check on the
driveshaft yesterday. The truck does not have a 2 speed rear. Haven't tried
greasing it to see if it helps, it shouldn't be dry no more than the truck
is driven considering how often I grease it. Still doesn't mean something
isn't trying to lock up, worth greasing to see if it helps.
The center driveshaft hangar was replaced a 4 or 5 years ago, not many miles
on it and it still looked good yesterday. I did notice a little slop on the
driveshaft spline, I would think a little is acceptable on a machine of this
age?
Haven't tried pushing the clutch in once the vibration starts.
I tried a pry bar under the tires on one side while it was jacked up, didn't
notice any slop. I will say things are a tad noisy when you jack one side of
the truck up and put it in gear. Sounds loudest around back, normal? Didn't
really give it any gas when we were checking. You don't hear any strange
noise in the cab while on the road, then again it's not very quiet in there
to start with.

John


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