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03-11-2019, 04:05 PM
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#1
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Junior Member
Join Date: Nov 2012
Location: wv
Posts: 13
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Replacement tires effecting electronics?
The Federal Certification Tag for my 2003 Bounder calls for replace tires to be 245/70R 19.5--Front and rear tires to be LR F. My Bounder's Front GAWR is 3402 lbs. and the rear GAWR is 6123 lbs. I am considering replacement with 245/70R 19.5 LR H. Will the increase in LR and Max load cause trouble with on board electronics?
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03-11-2019, 04:07 PM
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#2
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Senior Member
Join Date: Jun 2006
Location: Dallas,OR
Posts: 4,584
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You have to be kidding me? How would different tires effect anything except load?
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Don and Lorri
Resident Dummy. 
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03-11-2019, 04:23 PM
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#3
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
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I think you are thinking odometer or similar. No.
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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03-11-2019, 04:26 PM
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#4
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Senior Member
Join Date: Jun 2017
Posts: 2,807
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It's the same size tire: so no on your odometer and other readings that may come from speed (like MPG) and heck no on any other electronics even if they were a different size.
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03-11-2019, 04:31 PM
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#5
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 13,154
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You'll be fine.
__________________
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Criticism is easier than Craftsmanship
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03-12-2019, 12:01 PM
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#6
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Senior Member
Join Date: Nov 2017
Location: Citra, Florida
Posts: 1,396
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OP must have a trip computer and is wondering it the tires will affect his mpg info. Some tires of the same size will be a half inch or so higher or lower. The design of the tire might allow a different amount of "growth" when on the freeway but I dont thing either variable will make enough difference to mess with the calculations.
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Good Luck and keep us posted please. "Q"
1999 Newmar, Mountain Aire 3768, V-10, CAI, Headers.
"Spending our kids inheritance one trip at a time"
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03-12-2019, 12:27 PM
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#7
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Senior Member
Join Date: Jan 2009
Posts: 5,399
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Different tire sizes will cause speed to be off and odometer to record incorrectly. But I believe the sizes mentioned by the OP are very close and won't present this.
Do have a question though, are those GAWRs correct?
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03 Itasca Sunova, Workhorse P32 with the 8.1 and 4L85-E
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03-12-2019, 01:21 PM
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#8
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Senior Member
Thor Owners Club Ford Super Duty Owner
Join Date: Jul 2011
Posts: 3,796
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Since there will be no changes to the diameter, width, sidewall or circumference measurements of the tire by going with a different load range there will be no changes regarding distance or speed measurements.
Understand there is also no gain regarding the load capacity of the coach by switching to a higher load range tire. You will still limited in capacity based on the gross axle weight restriction (GAWR) and other physical capacities of the chassis as designed and built. You also have to consider that due to the stiffer sidewall associated with a high load range tire the ride may be a bit harsher.
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2006 Hurricane 31D built on a 2006 Ford F53
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03-12-2019, 02:42 PM
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#9
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Member
Damon Owners Club
Join Date: Jun 2017
Location: Ontario, CA
Posts: 73
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That's what size and rating I have on my Damon Daybreak on a Ford F53 chassis and all is good. My rationale was that the additional load carrying capacity would not be as stressed as the original size tire while at the same inflation pressure, giving me more peace of mind. I did not drive my coach before the tires were installed but I have no complaints about ride quality with the Load Range H tires.
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Dan and Shirley
Ontario, California
2010 Damon Daybreak 35BD on a Ford F53
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03-12-2019, 04:32 PM
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#10
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,794
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The only thing that would affect would be the odometer!  
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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03-12-2019, 04:54 PM
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#11
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Senior Member
Join Date: Mar 2015
Posts: 2,984
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And if you want to get really picky, the odometer/speedometer will change as the tires wear...
__________________
'04 Newmar Mountain Aire 4016
400ISL/Freightliner
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03-12-2019, 05:47 PM
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#12
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Registered User
Join Date: Jan 2010
Posts: 356
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and off to the races
After that barrage  he`s not coming back so we`ll never know what he meant.
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03-13-2019, 04:26 AM
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#13
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Junior Member
Join Date: Nov 2012
Location: wv
Posts: 13
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Quote:
Originally Posted by BSHGTO
After that barrage he`s not coming back so we`ll never know what he meant. |
On the contrary. Sweetbrair and Danib response were on target with my inquiry. This forum has been very helpful to all my previous posts. Thanks to all!
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03-13-2019, 03:39 PM
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#14
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Senior Member
Join Date: Feb 2016
Posts: 860
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Quote:
Originally Posted by topnotchnwv
The Federal Certification Tag for my 2003 Bounder calls for replace tires to be 245/70R 19.5--Front and rear tires to be LR F. My Bounder's Front GAWR is 3402 lbs. and the rear GAWR is 6123 lbs. I am considering replacement with 245/70R 19.5 LR H. Will the increase in LR and Max load cause trouble with on board electronics?
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I would move up to G rated tires not H rated, it will ride to hard.
Also it wont change the speed odometer or anything else..
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