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Z71 wheels and tires

Discussion in 'Wheels & Tires' started by PaUltraBob, Feb 23, 2012.

  1. PaUltraBob

    PaUltraBob New Member

    I have a 2009 Z71 4x4 extended cab ,what i want to know is if i can run 275-55-20 inch tires and wheels like on a reg. 4x4. The wheels tires i have on now are 265-70-17 . The dealer says i can't run 20 inch wheels because of the Z71 suspension. anyone have thoughts on ideas on this, if true or not. THANKS, PaUltraBob
  2. mfleetwood

    mfleetwood Rockstar 4 Years ROTM Winner 5000 Posts

    I don't think you'll have any problems, as those tires are very similar in width and diameter. I not good with offset/backspace, but I think if those rims are the same as your stock, you should be okay all the way around.

    [TABLE]
    [TR="bgcolor: #d3d3d3"]
    [TD]tock Tire - 265/70R17 [​IMG] Search Tires[/TD]
    [TD]Tire 1 - 275/55R20 [​IMG] Search Tires[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Section Width:[/TD]
    [TD="width: 80, align: right"]10.43 in[/TD]
    [TD="align: right"]265 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Section Width:[/TD]
    [TD="width: 80, align: right"]10.82 in[/TD]
    [TD="align: right"]275 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Rim Diameter:[/TD]
    [TD="width: 80, align: right"]17 in[/TD]
    [TD="align: right"]431.8 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Rim Diameter:[/TD]
    [TD="width: 80, align: right"]20 in[/TD]
    [TD="align: right"]508 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 100%"]
    [TR]
    [TD="width: 100"]Rim Width Range:[/TD]
    [TD="width: 80, align: right"]7 - 9 in[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 100%"]
    [TR]
    [TD="width: 100"]Rim Width Range:[/TD]
    [TD="width: 80, align: right"]7.5 - 9.5 in[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Overall Diameter:[/TD]
    [TD="width: 80, align: right"]31.60 in[/TD]
    [TD="align: right"]802.64 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Overall Diameter:[/TD]
    [TD="width: 80, align: right"]31.90 in[/TD]
    [TD="align: right"]810.26 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Sidewall Height:[/TD]
    [TD="width: 80, align: right"]7.30 in[/TD]
    [TD="align: right"]185.42 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Sidewall Height:[/TD]
    [TD="width: 80, align: right"]5.95 in[/TD]
    [TD="align: right"]151.13 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Radius:[/TD]
    [TD="width: 80, align: right"]15.80 in[/TD]
    [TD="align: right"]401.32 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Radius:[/TD]
    [TD="width: 80, align: right"]15.95 in[/TD]
    [TD="align: right"]405.13 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Circumference:[/TD]
    [TD="width: 80, align: right"]99.27 in[/TD]
    [TD="align: right"]2521.4 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Circumference:[/TD]
    [TD="width: 80, align: right"]100.2 in[/TD]
    [TD="align: right"]2545.0 mm[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE]
    [TR]
    [TD]Revs per Mile:[/TD]
    [TD="width: 130, align: right"]658.2[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE]
    [TR]
    [TD]Revs per Mile:[/TD]
    [TD="width: 130, align: right"]652.0[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"][TABLE="width: 280"]
    [TR]
    [TD="width: 120"]Actual Speed:[/TD]
    [TD="width: 80, align: right"]60 mph[/TD]
    [TD="align: right"]100 km/h[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [TD][TABLE="width: 280"]
    [TR]
    [TD="width: 100"]Speedometer1:[/TD]
    [TD="width: 80, align: right"]59.4 mph[/TD]
    [TD="align: right"]99.0 km/h[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR="bgcolor: #D3D3D3"]
    [TD="bgcolor: #EEEEEE"]Speedometer Difference: -[/TD]
    [TD]Speedometer Difference: 0.950% too slow[/TD]
    [/TR]
    [TR]
    [TD="bgcolor: #EEEEEE"]Diameter Difference: -[/TD]
    [TD]Diameter Difference: 0.95%[/TD]
    [/TR]
    [/TABLE]

    http://www.1010tires.com/TireSizeCalculator.asp?action=submit

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