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wheels and tires

Discussion in 'Chevy Trucks' started by SnowMatt13, Feb 26, 2010.

  1. SnowMatt13

    SnowMatt13 PlowSite.com Addict
    Messages: 1,533

    looking to get a set of summer wheels and tires
    I am currently running 265 75 16 on my stock rims
    I found a set of 17" wheels I really like, my question is I'd like to keep the same height but maybe a bit wider...
    Any recommended tire size?
     
  2. RichG53

    RichG53 PlowSite.com Addict
    Messages: 1,135

  3. RichG53

    RichG53 PlowSite.com Addict
    Messages: 1,135

  4. purplehavoc

    purplehavoc Member
    Messages: 97

    On my 05 i run a set of 285/75/16's on a set of 16x8 Ultra wheels.
    Gives the truck a better looking stance,but dosen't stick way out.
     
  5. mossman381

    mossman381 2000 Club Member
    Messages: 2,410

    285's are a popular upgrade. Will they fit on your truck without some minor mods, probably not. 285's will get you wider, but they also get you 1" bigger. I like the 285's and think they are worth trimming some of the plastic.
     
  6. rb69

    rb69 Member
    from Midwest
    Messages: 58

    I have had these: http://desmoines.craigslist.org/pts/1616553466.html on my 08 and just sold a set of 20's w/ 305/50/20. Seems like if you have any rubbing on the trucks older than 07 it would be on the plastic air dam. new than that rub behind the tire @ the plastic inner fender liner
     
  7. mossman381

    mossman381 2000 Club Member
    Messages: 2,410

    Do you have a pic of them on your truck? I would like to see them. That is a big tire for a truck with no lift.
     
  8. rb69

    rb69 Member
    from Midwest
    Messages: 58

    here are 2 w/ the 18" & one w/ the old set of 20's w/ 305/50/20-20's are in the center picture

    08chevy18s.jpg

    08 chevy w 20's 001.jpg

    08chevy18s4.jpg
     
  9. mossman381

    mossman381 2000 Club Member
    Messages: 2,410

    Looks good. What kind of lift to you have on that truck? And why are you selling them?
     
  10. rb69

    rb69 Member
    from Midwest
    Messages: 58

    Sorry the picture w/ the 18's are the old tires here are the BFG-NO lift T-bars just cranked up.
    Looking to try something different

    crf001.jpg
     
  11. mossman381

    mossman381 2000 Club Member
    Messages: 2,410

    Your T-bars must be cranked to the max to level the truck out?
     
  12. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    Go with a 305 tire, they are just a fuz wider than a 285 or 265, then get a wheel with a touch of back spacing, they will end up like this.

    03 Chevy on left has 285's on it
    07 GMC on right has 305's on it

    Basicly the same height (33") a 305 is just a wider tire

    004.jpg
     
  13. mossman381

    mossman381 2000 Club Member
    Messages: 2,410

    Might as well go for a 315 then :D A 305 and a 285 are not always the same. It all depends on what number is after the 285 or 305. 285/70 and a 305/70 are not the same size. I am not sure I would go with the 305, because I always have a hard time getting the 285's to fit. I am talking about a truck with a stock suspension and with a plow.

    I don't see any plow mounts on them trucks. You have to remember that a plow truck sags a bit.
     
    Last edited: Feb 27, 2010
  14. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    That statement could get someone in trouble.

    Height of the tire is determined by section width, aspect ratio, and rim size.

    You COULD have a 305 that is shorter than a 265, even on the same rim diameter.
     
  15. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    Crank the t-bars up and they will fit.

    305/70 and a 285/75 are within about a millimeter of each other in height. Sorry about that, I figured that people are able to figure that out.

    As for plow mounts the pictures were taken in the summer when the tow hooks go back on. The fields get muddy in the spring and fall and at times you need a little tug to get a wagon or such moving. Here, here they are with the plows

    In order:
    Pic #1: 285/75R17's
    Pic #2: 305/70R16's - 285/75R16's - 285/75R16
    Pic #3: 305/70R16's
    Pic #4: 285/75R16's

    [​IMG]



    [​IMG]

    331.JPG

    464.JPG
     
  16. mossman381

    mossman381 2000 Club Member
    Messages: 2,410

    A 285/75 and a 305/70 are about the same. If you actually read my post you would have seen I said a 285/70 and a 305/70 are not the same. There is almost an inch difference.

    As far as fitting a 305, you must have you t-bars cranked to the max. And that black gmc looks like it has been all hacked up to fit the big tires. I wouldn't want to do that to my truck. Maybe a slight trim.
     
  17. William B.

    William B. Senior Member
    from S.E. IA
    Messages: 978

    I like the way the 305's look on the trucks.

    IIRC the Chevy of Phil's has green keys and a 2" block in the back.
     
  18. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    You are correct, I did read your post, in my first post I posted 305's vs 285's figuring that if people are looking for say a 33" tall tire, they can fill in the rest.

    I am talking about tire width here. You are the one that posted two tire different sizes in both height and width not me, I posted two different width tires which is what he is looking at. If you read back to the the first post, he is talking about keeping the same height tire, just looking for a bit wider.

    Let me show you how this works:

    255/85R16:
    Sidewall: 8.5"
    Radius: 16.5"
    Diameter: 33.1"
    Circumference: 103.9"
    Rev/ Mile: 610.0
    Tire width: 10"

    265/80R16
    Sidewall: 8.3"
    Radius: 16.3"
    Diameter: 32.7"
    Circumference: 102.7"
    Rev/ Mile: 617.0
    Tire width: 10.4"

    285/75R16
    Sidewall: 8.4"
    Radius: 16.4"
    Diameter: 32.8"
    Circumference: 103.1"
    Rev/ Mile: 614.0
    Tire width: 11.2"

    305/70R16
    Sidewall: 8.4"
    Radius: 16.4"
    Diameter: 32.8"
    Circumference: 103.1"
    Rev/ Mile: 615.0
    Tire width: 12"

    So back to the original poster's question:

    He is looking to find a wider tire than a 265/75R16. And he found a set of 17" wheels so, just so now one is going to call me out on the fractional difference on sidewall ratio's I will use 17" wheels for my example. If you need it in 16" wheels, let me know and I will do the math on those too.

    265/75R17
    Diameter: 32.7"
    Tire width: 10.4"

    285/70R17
    Diameter: 32.8"
    Tire width: 11.2"

    305/65R17
    Diameter: 32.6"
    Tire width: 12"

    As for my trucks, I run 33" tall tires in the winter. And, yes, I do cut the sh*t out of the plastic so in the summer I can run wide tires with aftermarket wheels that have a lot of backspacing. That is how I like my trucks to look. I can assure you that I do not have to cut that much to fit a little set of 285/75's on stock wheels. To each is there own.
     
  19. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,615

    Good memory Will!

    Also true, but, you can achive the same front end clearance by cranking torsion bolts, my green keys do not have any turns on the bolts, just enough to keep the bolts in there. All that a green key does is re-index the torsion bar to the postion of the cranked torsion bolts and not put the stress on the bolt.

    But for the sake of the argument, I only posted the pictures of the Chevy from before the blocks and keys, I didn't want someone to be able to call me on that technicality. This is what she looked like with the blocks and keys. Nice difference hunh!

    649.JPG
     
  20. rb69

    rb69 Member
    from Midwest
    Messages: 58

    how does is the ride with the new keys over having the t-bars cranked up?