sunline1
Northeastern Pa
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My 97 chev 3/4T, 454 cu in, auto, 4X4, pickup has LT 245 75r 16 tires on it factory sized.
I have a chance to buy 4 good used LT 235 "85"r 16 tires.
Question is with the 3:73 rear axle ratio, wondering what effect if any the larger diameter tires will have on pulling my 7,000 lb camper ?
Any thoughts ??
Thanks
Sunline1
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tvman44
Southwest Louisiana
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Effectively increase your gear ratio a little.
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StoneyPgh
New Kensington, PA Steeler Country
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The change will be an increase in tire diameter of 32 mm, not enough to make any difference. Just make sure you don't lose any load rating.
Peter & Nancy --- We never had a bad day camping
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skipnchar
Topeka Kansas USA
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6 tire rpm per mile difference and less than 1% error in speedometer.
2004 F-250 SCREW Long Bed (new)
OR 2004 F-150 HD (85,000 towing miles)
Rockwood 8314SS 34' travel trailer
We have enough YOUTH...how about a fountain of SMART
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sunline1
Northeastern Pa
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Thanks all sounds good.
Happy Camping !!!
Sunline1
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Peg Leg
Anderson, IN
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Sunline1, I went to the 19.5" and I tow about the same trailer. My tires made my speedo read about 10% under speed. Mine still pulls great, it likes to run a bit faster in OD with the cruise on to keep from unlocking the converter. I just use the pedal more and can keep it locked at my desired speed.
KA9ATV
K2500 7.4 3.73
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ejforwood
Littleton (Denver) Colorado
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You should check date code to see how old the tires are. JMHO!
* This post was
edited 11/06/09 06:45am by ejforwood *
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Deen
Vancouver, WA
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sunline1 wrote:My 97 chev 3/4T, 454 cu in, auto, 4X4, pickup has LT 245 75r 16 tires on it factory sized.
I have a chance to buy 4 good used LT 235 "85"r 16 tires.
Question is with the 3:73 rear axle ratio, wondering what effect if any the larger diameter tires will have on pulling my 7,000 lb camper ?
Any thoughts ??
Thanks
Sunline1 It's not so much the pulling the camper, it's the weight rating of the tire. Most good tires shops refuse to put lesser rated tires on. I was told it's the law but ....
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sunline1
Northeastern Pa
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Deen
These used tires are from a relative, and they are load range E as are my current tires. Load range E came on the truck when it came from the factory, as I ordered it.
Sunline1
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