From: Bjorn Brandstedt (super_deuce@hotmail.com)
Date: Mon Jun 14 2004 - 04:04:55 PDT
Sonny,
Everything was "standard" for the Aberdeen trip. I didn't want to install
brand new tires in the front and have them wear out like the old ones. So,
after some research on the subject I realized the problem with the tandem
always being locked.
Now if APB can sell his "tandem free wheeling gizmo" for a reasonable amount
of money, he will have a new market here.
Cheers,
Bjorn
>From: "Ida Heath" <spike@defuniak.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 21:48:48 -0500
>
>So did you have this shaft in or out when we went to Maryland?
>
>Sonny
>
>
>----- Original Message -----
>From: Bjorn Brandstedt <super_deuce@hotmail.com>
>To: Military Vehicles Mailing List <mil-veh@mil-veh.org>
>Sent: Sunday, June 13, 2004 4:13 PM
>Subject: Re: [MV] Bjorn's recipe for long front tire life (M35)
>
>
> > Sonny,
> >
> > It's the drive shaft between the tandem axles. Without a differential in
> > this connection, the bogie resists any turning motion. The front tires
>have
> > to work overtime and get worn out very quickly.
> > The theoretical turning circle for this truck with a wheel base of 154
> > inches and a steering angle of 24 degrees is about 64 feet.
> > The manual calls out 74 feet so something isn't performing even close to
>the
> > ideal. When I removed this drive shaft on my deuce, the new turning
>circle
> > was measured to be 66 feet. Much better!
> >
> > Bjorn
> >
> >
> > >From: "Ida Heath" <spike@defuniak.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 14:34:53 -0500
> > >
> > >Bjorn,
> > >
> > >Which driveshaft are you talking about taking out? The one going from
>the
> > >intermediate differential to the rear differential?
> > >
> > >Sonny
> > >
> > >
> > >----- Original Message -----
> > >From: Bjorn Brandstedt <super_deuce@hotmail.com>
> > >To: Military Vehicles Mailing List <mil-veh@mil-veh.org>
> > >Sent: Sunday, June 13, 2004 10:16 AM
> > >Subject: Re: [MV] Bjorn's recipe for long front tire life (M35)
> > >
> > >
> > > > 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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