On Thu, 21 Oct 2010 22:47:44 GMT, "A.Boater" wrote:

19.5" tires last about 4-5 times longer than 16" tires and I can change them
in my own garage with $12 worth of tools.

http://www.youtube.com/watch?v=hhaKI-IdGJg

It almost looks like the guy is putting 19" tires on 17" rims. :)

It does seem as though the bigger tires would last longer, but BAR brings up a
good point about the speedometer. The new ones, as I mentioned, offer three
wheel sizes, but there is no change to the transmission. I just looked at one of
the Silverado forums, and it seems the big problem would be rubbing when
turning, unless the truck is lifted.

I'll talk to a dealer and see what they say. The tires on this truck are in
great shape, so I won't be doing anything for a while.
--
John H

All decisions are the result of binary thinking.

On Oct 21, 6:59*pm, John H wrote:
On Thu, 21 Oct 2010 22:47:44 GMT, "A.Boater" wrote:
19.5" tires last about 4-5 times longer than 16" tires and I can change them
in my own garage with $12 worth of tools.

http://www.youtube.com/watch?v=hhaKI-IdGJg

It almost looks like the guy is putting 19" tires on 17" rims. :)

It does seem as though the bigger tires would last longer, but BAR brings up a
good point about the speedometer. The new ones, as I mentioned, offer three
wheel sizes, but there is no change to the transmission. I just looked at one of
the Silverado forums, and it seems the big problem would be rubbing when
turning, unless the truck is lifted.

I'll talk to a dealer and see what they say. The tires on this truck are in
great shape, so I won't be doing anything for a while.
--
John H

All decisions are the result of binary thinking.

John, the transmissions are the same but the speedo sending unit is
calibrated differently. Plus, the bigger tire will give you a higher
gear ratio, and will do pretty good on daily driving, but would put
extra load on it in a haul.

On Thu, 21 Oct 2010 19:42:45 -0700 (PDT), Tim wrote:

On Oct 21, 6:59*pm, John H wrote:
On Thu, 21 Oct 2010 22:47:44 GMT, "A.Boater" wrote:
19.5" tires last about 4-5 times longer than 16" tires and I can change them
in my own garage with $12 worth of tools.

http://www.youtube.com/watch?v=hhaKI-IdGJg

It almost looks like the guy is putting 19" tires on 17" rims. :)

It does seem as though the bigger tires would last longer, but BAR brings up a
good point about the speedometer. The new ones, as I mentioned, offer three
wheel sizes, but there is no change to the transmission. I just looked at one of
the Silverado forums, and it seems the big problem would be rubbing when
turning, unless the truck is lifted.

I'll talk to a dealer and see what they say. The tires on this truck are in
great shape, so I won't be doing anything for a while.
--
John H

All decisions are the result of binary thinking.

John, the transmissions are the same but the speedo sending unit is
calibrated differently. Plus, the bigger tire will give you a higher
gear ratio, and will do pretty good on daily driving, but would put
extra load on it in a haul.

Depending upon the aspect ratios of the tires, the bigger tire would be very
close in diameter to the 'smaller' tire.

A 235/85R16 has a diameter of about 31.7". A 225/70R19.5 has a diameter of about
31.9". That's getting pretty damn close. (And that's assuming I did the math
right.)
--
John H

All decisions are the result of binary thinking.

On Fri, 22 Oct 2010 00:14:16 GMT, "A.Boater" wrote:

BAR is out of his element, again.

There is a ton of paraphenalia out there to recalibrate the speedometer.
Final choice of vehicle will determine how this will be accomplished.

Been there, done that.

I'm wondering if recalibrating the speedometer can be done using the onboard
computer.
--
John H

All decisions are the result of binary thinking.

On Oct 21, 7:32*pm, John H wrote:
On Fri, 22 Oct 2010 00:14:16 GMT, "A.Boater" wrote:
BAR is out of his element, again.

There is a ton of paraphenalia out there to recalibrate the speedometer.
Final choice of vehicle will determine how this will be accomplished.

Been there, done that.

I'm wondering if recalibrating the speedometer can be done using the onboard
computer.
--
John H

All decisions are the result of binary thinking.

Yes, and the dealer or maybe the guys at the tire shop can do it.

On Thu, 21 Oct 2010 19:45:58 -0700 (PDT), Tim wrote:

On Oct 21, 7:32*pm, John H wrote:
On Fri, 22 Oct 2010 00:14:16 GMT, "A.Boater" wrote:
BAR is out of his element, again.

There is a ton of paraphenalia out there to recalibrate the speedometer.
Final choice of vehicle will determine how this will be accomplished.

Been there, done that.

I'm wondering if recalibrating the speedometer can be done using the onboard
computer.
--
John H

All decisions are the result of binary thinking.

Yes, and the dealer or maybe the guys at the tire shop can do it.

Good to know. Thanks.

I've been reading about that Olympus. Damn difficult instruction book. Must have
been written by the guys who design BMWs.
--
John H

All decisions are the result of binary thinking.