From: Marc Strangfeld (curlyjoe98@yahoo.com)
Date: Tue Jun 15 2004 - 01:06:15 PDT
Bjorn
Good topic/debate
I have to disagree with the interaxle solution to
avoid cupping. I trashed two fronts on my trip last
year due to cupping and the interaxle was removed. I
assumed the majority of the problem was the camber and
that the thin sidewalls roll under during turns. I
did notice better driving conditions with the
interaxle off but don't believe it helped all that
much with tire wear. I can't argue with your turning
radius measurements but I have two tires as proof of
my theory. However, in hindsight I do think more than
50 psi in the fronts might have helped.
Marc
--- Bjorn Brandstedt <super_deuce@hotmail.com> wrote:
> You are welcome.
>
> By far the most important fix is the removal of the
> interaxle drive shaft.
> With it installed the truck suffers from severe
> understeer and is pushed
> forward through the turns. That's what causes the
> cupping and tire wear.
> Without the driveshaft, the turning radius is
> reduced to 33 feet (in my
> case, measured repeatedly in a paved parking lot).
> The manual calls out a
> turning radius of 37 feet.
> As far as I know, the A3 version has the same
> problem.
> A good front end alignment is just "gravy".
> Lowering the tire pressure in the rear will put more
> tread on the road for
> an even wear.
> More pressure in the front because 50 psi just isn't
> enough for the load, at
> highway speed, anyway.
> If you have any questions, let me know.
> Bjorn
>
>
> >From: Marc Strangfeld <curlyjoe98@yahoo.com>
> >To: "Military Vehicles Mailing List"
> <mil-veh@mil-veh.org>
> >Subject: Re: [MV] Bjorn's recipe for long front
> tire life (M35)
> >Date: Sun, 13 Jun 2004 07:25:04 -0700 (PDT)
> >
> >Thanks Bjorn
> >
> >I am in the process of putting 11.00 singles on
> mine
> >and will follow your advice, except for replacing
> the
> >springs. My trip out west is a good test due to
> the
> >constant driving and extreme heat. Last year two
> 80%
> >fronts were trashed in 3,000 miles from the exteme
> >cupping.
> >
> >Marc
> >
> >
> >
> >--- Bjorn Brandstedt <super_deuce@hotmail.com>
> wrote:
> > > Friends,
> > > Following research for a future article in the
> > > Military Vehicles Magazine, I
> > > have come up with a recipe that will reduce the
> > > front tire wear on the M35
> > > 6x6 trucks:
> > >
> > > 1) Remove interaxle propeller shaft (most
> > > important!)
> > > 2) Replace shocks and springs if they are
> originals.
> > > 3) Tighten front wheel bearings 1/8 turn on the
> > > adjusting ring (check for
> > > abnormal heating after the first couple of test
> > > drives). This will reduce
> > > camber and toe-in errors.
> > > 4) Adjust toe-in to 1/8 inch max.
> > > 5) Increase front tire pressure to 60 psi and
> lower
> > > rear (duals) tire
> > > pressure to 40 psi (9.00-20 tires)
> > > (Run on 60 psi on all tires if they are
> single
> > > 900's or 70 psi on all if
> > > single 1100's)
> > >
> > > This will also give you a turning radius, which
> is
> > > much closer to the ideal.
> > > Keep the front drive flanges installed for 4x4
> > > action when needed.
> > > Your fuel milage will also improve.
> > >
> > > Have a great day!
> > >
> > > Bjorn
> > > MVPA 19212
> > > Meadows of Dan, Virginia
> > >
> > >
> > >
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> >
> >
> >
> >
> >
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