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07-21-2011, 02:07 PM
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#1
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Seasoned Camper
Join Date: Sep 2004
Location: Crossville
Posts: 85
M.O.C. #2082
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Changing Tire Sizes
Do you guys think I would have any trouble installing a Firestone Transforce HT LT235 85-16 in the place of the LT215/85-16 that is the standard tire on my 06 GMC K3500 dually?? It would give me a larger footprint, more load capacity and only 10 bucks a tire more. The tire tech there said it wouldn't be a problem but those guys see dollars and I'm seeing rubbing sidewalls and such. (Sorry Lonnie) :-)
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07-21-2011, 04:02 PM
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#2
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Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
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Ours has 215-85-16 andare doing very well. Only concern would be distance between duals, with the larger tires.
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07-21-2011, 08:49 PM
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#3
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Established Member
Join Date: Oct 2009
Location: Santa Fe
Posts: 19
M.O.C. #9794
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Quote:
quote:Originally posted by Snowbirds
Do you guys think I would have any trouble installing a Firestone Transforce HT LT235 85-16 in the place of the LT215/85-16 that is the standard tire on my 06 GMC K3500 dually?? ...
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It will reduce the space between the duals by 20mm... just under 1" which seems a lot. You need to see what spacing Firestone says you have to have to accommodate tire flex and compression under load for DRWs.
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07-22-2011, 04:10 AM
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#4
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Montana Master
Join Date: Feb 2005
Location: Sioux Falls
Posts: 729
M.O.C. #3206
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I am strongly considering the 235 next time I replace the 215- If spacers are needed, I will add them as I did when I upgraded from 215 to 235 on our previous TV ( 95 Ford 350 dually )- We had no downside from that action- JHMO- Don
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07-22-2011, 04:37 AM
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#5
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Montana Master
Join Date: Jan 2007
Location: Lobelville
Posts: 2,128
M.O.C. #6650
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Snowbirds I went up in size on my 2008 Chevy SRW and it change the speed odometer by 1.5 miles per hour and decreased my mpg by 2 mpg but it really made the Truck look better. If I remember correctly I went to a 265?? Not really sure since I no longer have the Truck. Good Luck with your decision. I would talk to Lonnie and get his advice.....
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07-24-2011, 05:17 AM
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#6
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,550
M.O.C. #2283
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My brother had a 2001, 3500 Chevy and while we were in Wyoming he had to get new tires. He tried to up size but could not because the tires would rub together. He only wanted to go up 1 size larger, I think from 205 to 215s.
Lynwood
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07-24-2011, 11:10 AM
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#7
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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I looked at that when my 05 Dually needed tires and decided to stay with the original size because of tire to tire clearance. What I did was put 215s on the rear and 245/70s on the front (both had the same OD) gave me a little more rubber on the front to support the Duramax weight. As noted, you could add a spacer between the wheels to increase the distance, but I would think that it might increase the stress on the axle bearings, but then again if it wasn't much it would probably be OK.
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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07-24-2011, 11:42 AM
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#8
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Montana Master
Join Date: Nov 2007
Location: Kville
Posts: 2,865
M.O.C. #7871
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Quote:
quote:Originally posted by Snowbirds
Do you guys think I would have any trouble installing a Firestone Transforce HT LT235 85-16 in the place of the LT215/85-16 that is the standard tire on my 06 GMC K3500 dually?? It would give me a larger footprint, more load capacity and only 10 bucks a tire more. The tire tech there said it wouldn't be a problem but those guys see dollars and I'm seeing rubbing sidewalls and such. (Sorry Lonnie) :-)
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Can't answer your question, but why do you want more load capacity? The OEM tires will handle the GW.
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