Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Trailer Towing and Tow Vehicles Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-02-2008, 02:26 PM   #1
Senior Member
 
Appalachian Campers
Coastal Campers
Join Date: Mar 2003
Location: New Bern,NC
Posts: 2,032
Has anyone gone up one tire size on their Chevy 2500 HD Diesel. I did last Thursday and have not towed the fiver yet. It seems according to my GPS the speedometer is two to three miles slower. The tires are a little over 2 inches higher, which may be a problem. The fiver was level when towing before the tire change. I did drive it today about thirty miles and the ride is much better than with the old tires. I am taking the fiver in this week for service, so let you know more after I tow it.
Tom
__________________

__________________
diandtom is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-02-2008, 02:26 PM   #2
Senior Member
 
Appalachian Campers
Coastal Campers
Join Date: Mar 2003
Location: New Bern,NC
Posts: 2,032
Has anyone gone up one tire size on their Chevy 2500 HD Diesel. I did last Thursday and have not towed the fiver yet. It seems according to my GPS the speedometer is two to three miles slower. The tires are a little over 2 inches higher, which may be a problem. The fiver was level when towing before the tire change. I did drive it today about thirty miles and the ride is much better than with the old tires. I am taking the fiver in this week for service, so let you know more after I tow it.
Tom
__________________

__________________
diandtom is offline   Reply With Quote
Old 03-02-2008, 03:07 PM   #3
Junior Member
 
Join Date: Dec 2007
Posts: 11
Do you contribute the better ride quality to the new tire size, quality or tread design?
__________________
lucas874 is offline   Reply With Quote
Old 03-02-2008, 04:50 PM   #4
Senior Member
 
Appalachian Campers
Coastal Campers
Join Date: Mar 2003
Location: New Bern,NC
Posts: 2,032
The tires that came on the truck were Bridgestones and were almost worn out at 24,000 miles. The new tires are Michliens XPS A/T. I always have got at least 40,000 out of radial tires.
__________________
diandtom is offline   Reply With Quote
Old 03-04-2008, 10:19 AM   #5
Member
 
Grandpaw's Avatar
 
Join Date: Feb 2002
Location: Amarillo TX
Posts: 48
I have been running the 265s on my rig for 3 years now, with no problems. the stock speedometer went from 2mph fast to 1 mph slow
with the tire size increase.
__________________
Have a GREAT day !

Grandpaw is offline   Reply With Quote
Old 03-04-2008, 10:58 AM   #6
Senior Member
 
450Donn's Avatar
 
Join Date: Jun 2006
Location: Dallas,OR
Posts: 2,557
There will be a slight change in final drive ratio. Depending on how loaded you are it might make some difference.
__________________
Don and Lorri
2007 Dodge 3500 dually
Resident Dummy.
450Donn is offline   Reply With Quote
Old 03-04-2008, 12:48 PM   #7
Senior Member
 
Appalachian Campers
Coastal Campers
Join Date: Mar 2003
Location: New Bern,NC
Posts: 2,032
I just got back from towing the fiver to be serviced and taking the truck to the dealer. It cost $85.00 to calibrate the speedometer. I cannot tell a difference in how the truck tows the fiver. I was a little worried about the rig not being level but it is just fine. I could not drop the hitch anymore as all I have it 6 1/2 clearance from the top of the bed to the trailer. When I get my taxes finished and if there is any money left we are going to Mississippi the end of March. O Yea the price of fuel today went from $3.59 to $3.69 JUST WONDERFUL
__________________
diandtom is offline   Reply With Quote
Old 03-04-2008, 03:47 PM   #8
Senior Member
 
MO _ Jack's Avatar
 
Join Date: Apr 2002
Location: Waynesville Missouri
Posts: 106
Do you remember how much side rail clearence you had with the old tires? I am thinking of going "up" with my next set of tires but the side rail clearence may be a issue. I can program the speed issue with my hyperchip.

Jack
__________________
2003 CHEV 2500HD EXT CAB, DMAX Allison SB 4X4
2001 Dutchmen Classic 27RK 5W
MO _ Jack is offline   Reply With Quote
Old 03-08-2008, 03:36 AM   #9
Junior Member
 
Join Date: May 2007
Posts: 4
I replaced my original equipment tires 245's with 265's over a year ago and can really tell no difference in towing. The reason I changed was mainly cosmetic as I thought the 245's looked too small and showed too much wheel well on my truck. I have a garmin gps and my speedometer is off 1 mile low. I'm sure there must be a reason why GM puts those dinky tires on 2500hd's but I don't know what it is...jwb.
__________________
2008 Big Horn 3055rl

2005 GMC 2500hd cc 4x4 duramax
jwb187 is offline   Reply With Quote
Old 03-09-2008, 08:56 PM   #10
Junior Member
 
Robbins's Avatar
 
Join Date: Jan 2008
Location: n. Ca.
Posts: 6
I have replaced the 245's with 265's on my last 3 trucks. Aired up to 80psi, the truck handles my 5er much better and gives me a better ride. My speedo was off about 2mph @ 60. I can't tell any difference in towing in the hills or the flats for that matter. They will also raise your GVWR by 740lbs on rear axle.
The only difference between the 2500HD and the 3500 is tires any how, and already have the same GVWR as it is.
Here's proof:
Silverado Specs
Check this out, it makes for very interesting comparisons
__________________
See 'ya on top
Keith
Robbins is offline   Reply With Quote
Old 03-10-2008, 04:44 AM   #11
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
To be accurate, changing the tires has no effect whatsoever on the GVWR shown on the driver's door jamb tag. Only the manufacturer or an authorized modifier can change the vehicle's ratings.

Rusty
__________________
2016 Ram Longhorn 3500 Dually 4x4 CCLB, 385/900 Cummins, Aisin AS69RC, 4.10
2014.5 DRV Mobile Suites 38RSSA #6972
Come join us on a TEXAS BOOMERS rally!
RustyJC is offline   Reply With Quote
Old 03-11-2008, 06:40 AM   #12
Senior Member
 
Appalachian Campers
Coastal Campers
Join Date: Mar 2003
Location: New Bern,NC
Posts: 2,032
Mo Jack the clearance between the side rail is the same as I did not drop the hitch any lower.
They called the other day tell me my fiver was ready and I am picking it up Tuesday. Yesterday diesel went up again to $3.89 at most places. There use to be a place where I could buy diesel a little cheaper than the other stations but not anymore. They are now in lock step with the others. I just got back from picking up the Arctic Fox in Washington, N.C.. It has been up there the last week for wheel bearing packed and brakes adjustment. It is something I have done every year. The RV dealer is about 45 miles away and after I got out of town where there are no stop light. I reset the DIC (I think that what it called) and running between 55-60 MPH I got 10.3 on the way back home. I checked several times and it never got into 6 gear ran in fifth all the way. I have to get above 60 mph for sixth gear.
__________________
diandtom is offline   Reply With Quote
Old 03-13-2008, 07:56 PM   #13
Junior Member
 
Robbins's Avatar
 
Join Date: Jan 2008
Location: n. Ca.
Posts: 6
Rusty:
Calif. hwy patrol has told me that I have legally boosted my weight rating. They will read the sticker on the door, and also take into account the weight rating on the tires.
Take a look at this site and tell me what is the difference between a 2500HD and a 3500.
Silverado specs
__________________
See 'ya on top
Keith
Robbins is offline   Reply With Quote
Old 03-14-2008, 04:47 AM   #14
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
Please read my statement again. We're talking about two different subjects. State weights and measures enforcement generally is concerned with axle loading as it relates to bridge and road damage as well as (in many states) revenue generation tied to the vehicle being registered for the weight it is carrying/towing. Using your example, I could put a Rickson 19.5" conversion kit on a Ford Ranger and, with each tire rated for 6,000 lbs, have a Ford Ranger with a 24,000 lb total axle weight rating insofar as the weights and measures enforcers are concerned.

That's an entirely different subject than the manufacturer's ratings for what the vehicle can weigh, carry or tow.

Rusty
__________________

__________________
2016 Ram Longhorn 3500 Dually 4x4 CCLB, 385/900 Cummins, Aisin AS69RC, 4.10
2014.5 DRV Mobile Suites 38RSSA #6972
Come join us on a TEXAS BOOMERS rally!
RustyJC is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Chevy 2500 is too high for our bad knees diandtom Trailer Towing and Tow Vehicles Discussion 6 04-12-2008 08:06 PM
Moved up... Offcamber Toy Haulers Discussion 9 07-30-2006 10:40 AM
83 F250 vs. 88 Chevy 2500 comparison rogersdan Truck Camper Discussion 2 06-23-2005 06:05 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:58 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.