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1) Loss of traction while off pavement may be caused/cured by comparing tire tread design ( highway, all-terrain, mud-terrain ) and intended driving surface.
2) Trailering issues may be caused/cured by comparing:
a) your trailer size/capacity and truck's towing capacity (upgrade to 3/4 or 1 ton)
b) upgrading tire load range (but not exceeding truck's tow capacity)
c) load in trailer compared to trailer's load capacity
d) use of torsion stabilizer bars when towing
the 1500 can tow my trailier weight
its that the pmetric tire side walls are not sturdy enough
I just want a bigger sturder tire and if the mich at 285 will fit without rubbing
kcram - Pickups Host
I don't feel the stability issues you mention other than the width seems to cause a pull to whichever side of the chain wear valleys in the pavement I am up on. Don't notice any pull on fresh road surface.
It is now almost six months later, have you resolved the problems you were experiencing?
Thanks
Any idea who is right?
When you compare the two sizes, the 265/65/18's are only .79" wider and 1.06" taller than the 245/70/17's. When you compare the 18" to the optional 265/70/17, there is very little difference in size.
What problems might I run into by running the 18" wheels and tires?
I believe it will effectively lower my rear end gear down slightly to around 3.6. I don't know that that little difference will be noticeable as far as power or gas mileage?? Any problems with the transmission?
Any thoughts would be appreciated.
On an LT tire, how do I check the mileage rating? I haven't found the LT's to have the same ratings on them as the P tires do. I'd like to avoid P's on a 2500.
Oh, and the 2500 is one tough truck. The eucalyptus tree in my yard fell on it, and it took hours with a chaninsaw to cut it out. Drove fine afterward, not even much body damage.
-DOUG-
The build list of my truck indicates that the original tires were 265/75R17 and the spare was 265/75R16.
This is an inch difference in diameter.
Is this a problem for the 4x4 system and what is the distance you can expect to go before damage is caused?
Over the weekend, a tire was terminally damaged by road debris about 250 miles from home. Was this too far to run the miss-matched tires? I replaced the tire at a higher cost than I could have at home as I was looking at “changeable weather over summit” that might have invited the activation of four-wheel-drive, which is another consideration.
So, the REAL question here is, how close is close enough?
Thanks
I know from experience years ago driving my BMW 2002 in a very “spirited” manner with a non-matching tread pattern on one tire, that it can seriously elevate the pucker factor.
So to answer the question as to information left out of that previous post; the tires on the truck when I bought it used are Nitto Terra Grappler LT285/65R18 on Diamo rims that do look good. They are the same tire diameter as the build list tires. They were also LTs, by the way.
And yes, I would expect the tread width to add significantly to the pucker factor caused by the tread pattern. These would not be mechanical issues unless I hit something because of it
How close is close enough in the diameter issue is still the question I am interested in.
Thanks again.
Thanks.
So, for whomever is looking for what others have done...
A year ago I bought a used 2007 2500HD NBS Crewcab shortbed Duramax with about 3 inch lift and Nitto Terragrappler 285/65R18 tires on Diamo rims.
I have had the rear of the front wheel wells tweaked to stop the rubbing on hard turns and changed the spare to a used 285/75R16 (it does fit up underneath the bed) so all tires are now pretty close to the same approximate 32.6 inch diameter, less wear.
The lug nuts are supposed to be compatible with the stock spare rim so when I am pulling my trailer (portable motel room) across the middle of the great open West with another tire problem (New Years Eve day something on the road cut through steel belts in center of a tire - not a fun thing), I can use the spare to get to the next berg large enough to find another Nitto tire.
I'm planning to go with 35's eventually. Any chance you'd be able to fit a 35er under there????
I am looking for the correct inflation pressure. I tried the owners manual, it says see the placard, tried GMC assistance line - no help (!!!!! really, they didn't know or couldn't find out)
Truck= 2003 Sierra 2500HD, 2 wheel drive, extended cab.
Tires = 245/75R16 Load range E Firestone Transforce HT (fancy name for just an OEM replacement tire)
If you have a similar truck, could you please check the door sticker for the inflation pressure?
Thanks in advance
Henry