SoK66

> So, if I don't rotate in teh spare.....30,000km down the road when I've
> worn Xinches off my tires and I go to put on my spare which still has the
> little bristles things on it.....will i not stress gearage and bearings by
> having one tire large than another on the same axle? <

Jeff's right, fix the flat and return the unworn tire to being a spare. This
can become a real issue if you have a Detroit Locker and put a newer, larger
tire on one side. Can you say CRAB WALK???

SoK66

> So, if I don't rotate in teh spare.....30,000km down the road when I've
> worn Xinches off my tires and I go to put on my spare which still has the
> little bristles things on it.....will i not stress gearage and bearings by
> having one tire large than another on the same axle? <

Jeff's right, fix the flat and return the unworn tire to being a spare. This
can become a real issue if you have a Detroit Locker and put a newer, larger
tire on one side. Can you say CRAB WALK???

SoK66

> So, if I don't rotate in teh spare.....30,000km down the road when I've
> worn Xinches off my tires and I go to put on my spare which still has the
> little bristles things on it.....will i not stress gearage and bearings by
> having one tire large than another on the same axle? <

Jeff's right, fix the flat and return the unworn tire to being a spare. This
can become a real issue if you have a Detroit Locker and put a newer, larger
tire on one side. Can you say CRAB WALK???

Steve

Ok....but what's the point of having a spare.....to throw on when you have
an unrepairable flat.

Actually, now that I think (it happens)....my spare can't just go on either
side as it's a directional tread too. haha....

So is there an issue with running your tread backwards...as in the
spare...so temporarily?!

"SoK66" <Nospam@SoK.net> wrote in message
news:dgap8m01rvr@enews2.newsguy.com...
>> So, if I don't rotate in teh spare.....30,000km down the road when I've
>> worn Xinches off my tires and I go to put on my spare which still has the
>> little bristles things on it.....will i not stress gearage and bearings
>> by having one tire large than another on the same axle? <
>
> Jeff's right, fix the flat and return the unworn tire to being a spare.
> This can become a real issue if you have a Detroit Locker and put a newer,
> larger tire on one side. Can you say CRAB WALK???
>
>
>

Steve

Ok....but what's the point of having a spare.....to throw on when you have
an unrepairable flat.

Actually, now that I think (it happens)....my spare can't just go on either
side as it's a directional tread too. haha....

So is there an issue with running your tread backwards...as in the
spare...so temporarily?!

"SoK66" <Nospam@SoK.net> wrote in message
news:dgap8m01rvr@enews2.newsguy.com...
>> So, if I don't rotate in teh spare.....30,000km down the road when I've
>> worn Xinches off my tires and I go to put on my spare which still has the
>> little bristles things on it.....will i not stress gearage and bearings
>> by having one tire large than another on the same axle? <
>
> Jeff's right, fix the flat and return the unworn tire to being a spare.
> This can become a real issue if you have a Detroit Locker and put a newer,
> larger tire on one side. Can you say CRAB WALK???
>
>
>

Steve

Ok....but what's the point of having a spare.....to throw on when you have
an unrepairable flat.

Actually, now that I think (it happens)....my spare can't just go on either
side as it's a directional tread too. haha....

So is there an issue with running your tread backwards...as in the
spare...so temporarily?!

"SoK66" <Nospam@SoK.net> wrote in message
news:dgap8m01rvr@enews2.newsguy.com...
>> So, if I don't rotate in teh spare.....30,000km down the road when I've
>> worn Xinches off my tires and I go to put on my spare which still has the
>> little bristles things on it.....will i not stress gearage and bearings
>> by having one tire large than another on the same axle? <
>
> Jeff's right, fix the flat and return the unworn tire to being a spare.
> This can become a real issue if you have a Detroit Locker and put a newer,
> larger tire on one side. Can you say CRAB WALK???
>
>
>

Mike Romain

You need two spares or you should have done what most folks with
directional tires do and just get a 'real' spare. That means getting a
tire as tall as your street tires and as skinny as you can find to cut
down on weight and use that as a spare.

That 5th tire is now just dead weight.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Steve wrote:
>
> Ok....but what's the point of having a spare.....to throw on when you have
> an unrepairable flat.
>
> Actually, now that I think (it happens)....my spare can't just go on either
> side as it's a directional tread too. haha....
>
> So is there an issue with running your tread backwards...as in the
> spare...so temporarily?!
>
> "SoK66" <Nospam@SoK.net> wrote in message
> news:dgap8m01rvr@enews2.newsguy.com...
> >> So, if I don't rotate in teh spare.....30,000km down the road when I've
> >> worn Xinches off my tires and I go to put on my spare which still has the
> >> little bristles things on it.....will i not stress gearage and bearings
> >> by having one tire large than another on the same axle? <
> >
> > Jeff's right, fix the flat and return the unworn tire to being a spare.
> > This can become a real issue if you have a Detroit Locker and put a newer,
> > larger tire on one side. Can you say CRAB WALK???
> >
> >
> >

Mike Romain

You need two spares or you should have done what most folks with
directional tires do and just get a 'real' spare. That means getting a
tire as tall as your street tires and as skinny as you can find to cut
down on weight and use that as a spare.

That 5th tire is now just dead weight.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Steve wrote:
>
> Ok....but what's the point of having a spare.....to throw on when you have
> an unrepairable flat.
>
> Actually, now that I think (it happens)....my spare can't just go on either
> side as it's a directional tread too. haha....
>
> So is there an issue with running your tread backwards...as in the
> spare...so temporarily?!
>
> "SoK66" <Nospam@SoK.net> wrote in message
> news:dgap8m01rvr@enews2.newsguy.com...
> >> So, if I don't rotate in teh spare.....30,000km down the road when I've
> >> worn Xinches off my tires and I go to put on my spare which still has the
> >> little bristles things on it.....will i not stress gearage and bearings
> >> by having one tire large than another on the same axle? <
> >
> > Jeff's right, fix the flat and return the unworn tire to being a spare.
> > This can become a real issue if you have a Detroit Locker and put a newer,
> > larger tire on one side. Can you say CRAB WALK???
> >
> >
> >

Mike Romain

You need two spares or you should have done what most folks with
directional tires do and just get a 'real' spare. That means getting a
tire as tall as your street tires and as skinny as you can find to cut
down on weight and use that as a spare.

That 5th tire is now just dead weight.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Steve wrote:
>
> Ok....but what's the point of having a spare.....to throw on when you have
> an unrepairable flat.
>
> Actually, now that I think (it happens)....my spare can't just go on either
> side as it's a directional tread too. haha....
>
> So is there an issue with running your tread backwards...as in the
> spare...so temporarily?!
>
> "SoK66" <Nospam@SoK.net> wrote in message
> news:dgap8m01rvr@enews2.newsguy.com...
> >> So, if I don't rotate in teh spare.....30,000km down the road when I've
> >> worn Xinches off my tires and I go to put on my spare which still has the
> >> little bristles things on it.....will i not stress gearage and bearings
> >> by having one tire large than another on the same axle? <
> >
> > Jeff's right, fix the flat and return the unworn tire to being a spare.
> > This can become a real issue if you have a Detroit Locker and put a newer,
> > larger tire on one side. Can you say CRAB WALK???
> >
> >
> >

Billy Ray

Back when I started driving OEM bias ply tires were only good for 12k miles
and you would do a 5 tire rotation for that first year and buy 4 new tires
of better quality that would last 16-20k and keep the best of the original
tires as the spare.

When winter arrived you would buy 2 studded snow tires and 1 used steel rim
and have them mounted for the winter season on your spare and that used rim.

When summer arrived you would dismount the snows and put one in your garage
and one in the trunk as your spare.

From then on you did a 4 tire rotation. Things progressed over the next few
years first with belted bias-ply tires that would last 24-30K miles and then
steel belted radials that lasted 30-40k.

My first radials in 1974 was a set of Kelly's that had 4 body plys and 3
steel belts. The ride was punishing but the handling was phenomenal

As has been mentioned before the early radials were rotated front to back.
I don't recall ever asking why but just followed their instructions.

For a few years there were a variety of radial construction ideas. Steel,
polyester, nylon, rayon, fiberglass, aramid, and even Kevlar was used in the
radial's construction.

I don't know when the rotation changed back again to one of the cross
rotation methods but I am guessing about 15 years ago as I am fairly sure
the OEM Vectors that came on my '84 Dodge Aries were still rotated
front-back.

After that I had 2 T-Birds, an XJ, and 2 Audis. The T-Birds and Audis had
direction performance tires and has to be rotated front-back which had been
my practice for many years. I bought the XJ while I still had the 2nd
T'Bird so I rotated the OEM Wranglers in the same manner.

What does this have to do with ProComp you say.... If the ProComps are
directional they will say so on the sidewall. If by any other quirk in
their construction they require a specific rotational method the
manufacturer will advise you. They may not have an incentive to maximize
your tires longevity but in this modern litigious society they absolutely
WILL NOT advise you to do anything that would lead to early catastrophic
failure as shyster lawyers would have them in court until they drove ProComp
into bankruptcy with both real and fraudulent claims.

For what it is worth my WJ's manual and the factory manual (on CD) recommend
forward-cross back rotation. on section 22 page 5
STANDARD PROCEDURE - TIRE ROTATION

Tires on the front and rear operate at different

loads and perform different steering, driving, and

braking functions. For these reasons they wear at

unequal rates and tend to develop irregular wear

patterns. These effects can be reduced by rotating

the tires at regular intervals. The benefits of tire

rotation are:

² Increase tread life

² Maintain traction levels

² A smooth, quiet ride

The suggested method of tire rotation is (Fig. 10).

Other rotation methods can be used, but they will

not provide all the tire longevity benefits.

(Figure 10 shows four tire rotation with the rear tires to the front on the
same side and then the front tires crossed and mounted on the rear)



My Conclusion: Your spare is a spare, it is just meant to last until you
are able to get the flat tire fixed or replaced. I have a brand new OEM
Wrangler ST as a spare and it is going to stay there. When I bought the WJ
a part of the deal was a replacement of the tires with ones of GOOD quality.
I got a set of 4 highly rated Kumhos for an additional $125 to replace the
Wranglers




--
..
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Brilliant Black Crystal Pearl Coat
Sharing is why we are all here....... or should be.
..
"Steve" <sbrady1(woo hoo)@sympatico.ca> wrote in message
news:tkcWe.3031$6Z1.755497@news20.bellglobal.com.. .
> Ok....but what's the point of having a spare.....to throw on when you have
> an unrepairable flat.
>
> Actually, now that I think (it happens)....my spare can't just go on
> either side as it's a directional tread too. haha....
>
> So is there an issue with running your tread backwards...as in the
> spare...so temporarily?!
>
> "SoK66" <Nospam@SoK.net> wrote in message
> news:dgap8m01rvr@enews2.newsguy.com...
>>> So, if I don't rotate in teh spare.....30,000km down the road when I've
>>> worn Xinches off my tires and I go to put on my spare which still has
>>> the little bristles things on it.....will i not stress gearage and
>>> bearings by having one tire large than another on the same axle? <
>>
>> Jeff's right, fix the flat and return the unworn tire to being a spare.
>> This can become a real issue if you have a Detroit Locker and put a
>> newer, larger tire on one side. Can you say CRAB WALK???
>>
>>
>>
>
>