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Going From 265 70 R 17 To 285 70 R17 Difference?


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#1 ace ventura

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Posted 08 December 2007 - 08:07 PM

I'm curious is their a big difference in the way the truck looks when you change from the 265's to 285's? I feel like my 4 wheel drive truck looks 2 wheel drive. I might do a lift in the future but I'm curious with just changing to the bigger aggressive tires will it give the truck a 4x4 look or is a lift inevitable. I also don't like lifts that involve cranking the t bars I just feel like it messes up the ride quality.

Edited by ace ventura, 08 December 2007 - 08:08 PM.


#2 retired2001

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Posted 09 December 2007 - 03:30 PM

I'm curious is their a big difference in the way the truck looks when you change from the 265's to 285's? I feel like my 4 wheel drive truck looks 2 wheel drive. I might do a lift in the future but I'm curious with just changing to the bigger aggressive tires will it give the truck a 4x4 look or is a lift inevitable. I also don't like lifts that involve cranking the t bars I just feel like it messes up the ride quality.

You will have about an inch more sidewall, as the ""265" has a 31.6" diameter vs. "285" has a 32.7" diameter. The speedometer should be off by 3.5%, according to the "Miata" tire size calculator. It should look a little better! Good luck.

#3 NathanL

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Posted 09 December 2007 - 04:35 PM

gmfullsize.com has a ton of post of people whit NNBS trucks with leveling kits and those tires.

#4 pm26

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Posted 09 December 2007 - 05:37 PM

Do not forget that by going to larger tires, you are also effectively reducing your gear ratio by the same amount as your speedometer error. The speedometer will read 3.5% too low and your gears will be 3.5% higher, so you are loosing 3.5% torque at the rear wheels. Want more torque at the rear wheels? Lower gears, or smaller tires.

Edited by pm26, 09 December 2007 - 05:44 PM.


#5 lesZ71

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Posted 09 December 2007 - 08:16 PM

I recently put on a set of 285/70/17 BFG ATs on my 2004 Z71 (stock otherwise) and I absolutely love them. The stock size was 265/70/17....the 285s "just look right". This is what these trucks should come with from the factory. The 285s fit perfectly with no rubbing at all....no torsion bar cranking or lift kit needed. I have put around 1,000 miles on them so far and the ride is much better also. The speedo is around 3.5% off...confirmed this with my GPS.
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#6 CGINSTRUCTOR

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Posted 09 December 2007 - 08:20 PM

Fellas,

I'm new to the forums, I also went from 265 to 285////looks great on the truck. I would also recommend a leveling kit.

I went with Dueler Revos 285/70-17 w/2.5 leveling kit

r/,

#7 KRJ Z71

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Posted 09 December 2007 - 08:38 PM

Why not any pics? I would like to see these trucks and tires.

#8 WFO

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Posted 09 December 2007 - 09:13 PM

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I stayed with 265/70 /17 because of it being harder in the tranny by changing the shift points and gearing. I hope to have this truck for 20 years. (My last K1500 I had for 13 years before some one pulled in front of me and totaled it) I think the more aggressive tires make the difference IMO.
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2007 Silverado Ext Cab WT LS package 4.8L, American Racing Cannon Wheels 17"X8.5", Nitto Terra Grappler 265/70R 17", 1.5" Skyjacker Leveling Kit, Raptor SS Oval Nerf Bars, Weather Tech Molded Floor Mats, AVS Vent Shades, Speed Liner Spray-on Bed Liner, SS Chrome Grill Insert, Corsa Sport Exhaust, GM molded Splash Guards, Bull Ring Tie Down Anchors, "Painted" Front Bumper, Front Valance, Door Handles, Mirror Caps, Added Body Side Molding

#9 scott28641

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Posted 09 December 2007 - 09:40 PM

i got 285/60r18 mich. ltx m/s on mine. i really like the look. i have a little rub but its no big deal. i think you will be happy with the wider tire. what are you going with?
2004 Chevrolet 1500 Z71, 5.3l, 4.10 gears, Cooper Zeon LTZ 285/60r18




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