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Tire Size Stock Height CJ5

Discussion in 'Early CJ5 and CJ6 Tech' started by NCRenII, Jan 2, 2018.

  1. Feb 26, 2018
    jeepinnh

    jeepinnh New Member

    new hampshire
    Joined:
    Jan 25, 2016
    Messages:
    16
    you said they look too tall, but do they rub? do you run tubes in the stock rims? what gear set do you have? 5.38's?
     
  2. Feb 27, 2018
    Stout

    Stout Member

    Quakertown, PA
    Joined:
    Nov 1, 2010
    Messages:
    958
    No rubbing at all so in that aspect they fit perfectly. I don't think they are any taller than military NDTs but I would personally prefer a shorter tire for aesthetic reasons. My Jeep is 100% stock so whatever the factory gear ratio is...I'm not sure. No tubes, they seated fine on the factory rims and have held air for 6 years now without issue. They actually ride very well -- I can cruise 45-50 MPH down a flat stretch of highway all day long.
     
  3. Feb 28, 2018
    spiderman

    spiderman Member

    Putnam , Ct.
    Joined:
    Dec 15, 2014
    Messages:
    81
    Running Goodyear Wrangler Radial P235-75R-15 , white letters IN ! Wasn't even a question , no way I wanted white on my bucket-o-bolts ! Actually even waiting for letters to dirty up a little , so I can't see 'em so much .
     
  4. Feb 28, 2018
    jeepinnh

    jeepinnh New Member

    new hampshire
    Joined:
    Jan 25, 2016
    Messages:
    16
    nice, thanks for the info
     
  5. Mar 15, 2018
    NCRenII

    NCRenII yellow fever

    Far Nor Cal
    Joined:
    Sep 22, 2017
    Messages:
    431
    Finally have the jeep on the ground after being on jack-stands for the past few weeks.
    Spent many hours over several days cleaning, carefully filing, grinding and sanding to remove some nicks and rim damage from prior tire install, and then finally polish the d slots (one tire had a plastic "duck-head" inside where it apparently dislodged when mounting). I had to use multiple methods and products to get them good looking without losing the original machine (lathe) marks on the surface. Ended up with 5 bfg TA KO 2's in 30x9.5 15 (black out ;)) tape on weights. I went with the ko over the km's mainly because I have km's on a 4x chevy truck and know how noisy and rock throwing prone they are. with the jeep intended for mainly mild offroading and desitring less noise and rock throwing decided to try these. Expensive experiment but what the heck.
    I was able to reuse 4 valve stems (1 had been replaced in the past and the only causality was the shop discarded four original valve caps (kind of pisses me off as I did not notice until I started cleaning and by then they were lost forever. A few new nicks incurred to the back side where the guys had trouble getting tires mounted 20+ years ago off. All in all cleande up well and now to lay around with air pressure for the best life and drive.
     
    Danefraz likes this.
  6. Mar 17, 2018
    Danefraz

    Danefraz Well-Known Member 2021 Sponsor 2020 Sponsor

    Chico CA
    Joined:
    Aug 11, 2012
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    2,079
    This was another good thread. It's like 'what oil do I run' and 'what is your recipe for knuckle pudding'. :watch:

    My CJ came with Cooper STT's (pretty old) in 30x10.5.

    I picked up some Hercules HDT 7.00x15 bias for the steel wheels that I powder coated white that I found for the CJ they are currently my rollers and look good imo (in my build thread):
    [​IMG]

    I think Hercules may have discontinued the HDTs, not in their catalog anymore.

    The chrome wagons with the original Cooper STTs are covered in a tarp in the back yard. The chrome has rusted and pitted in a few places from the PO's friendly dog when this was in a barn for 30yrs. Will get them dismounted at some point, then the wheels blasted and powdercoated with a crackle-type silver I think (or a hammer tone silver), but likely will run them until the tread is at 1/4 or so.

    BFGs might be in my future for those replacements as Cooper only offers a 12.5" wide in a taller size - BFGs can be had in a 10.5
     
    Thean and Beach66Bum like this.
  7. Mar 17, 2018
    Beach66Bum

    Beach66Bum 1966 Tuxedo Park Mark IV 2021 Sponsor 2020 Sponsor

    Big Island on...
    Joined:
    Oct 30, 2015
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    1,350
    Aggressive tread! Nice looking tire for a vintage Jeep. I was looking for over 2 years for a set of the whitewall Wintermarks.
     
  8. Mar 17, 2018
    jeepinnh

    jeepinnh New Member

    new hampshire
    Joined:
    Jan 25, 2016
    Messages:
    16
    While we're on the subject of wheels and tires, who makes a decent reproduction of the stock 16" early cj5 wheels?
     
  9. Mar 18, 2018
    Thean

    Thean Member

    HSB Idaho
    Joined:
    Sep 1, 2017
    Messages:
    88
    Some used 255/80R17 KM2 I tossed on some rims I have around for my YJ, was hoping they would fit. Needs lift and more backspace on rims. Fits the wheelhouse nice. :clap:

     
    Danefraz likes this.
  10. Mar 18, 2018
    NCRenII

    NCRenII yellow fever

    Far Nor Cal
    Joined:
    Sep 22, 2017
    Messages:
    431
    I notice the scuffing on the wheel side of tub. I have a little of that with the 30's that was run on the jeep previously. I'm curious if running that 17" tire (2" taller than 30x9.5-15) will rub sooner in situations rear axle is twisted. Wheel offset becomes important as does need for flares.
    cj5 tires.png
    Heres a quick pic bfg ko2 30x9.50-15 on stock Ren II D Slots with hours of cleaning/polishing
    next hood stripe replacement and mount up the warn 8274
     
    Last edited: Mar 18, 2018
    Thean likes this.
  11. Mar 19, 2018
    75CJ512JK

    75CJ512JK New Member 2020 Sponsor

    Tucson AZ
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    Mar 15, 2017
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    14


    Can you please post a shot from the front/back? I am considering same tires and dont want to run flares of possible
     
  12. Mar 19, 2018
    NCRenII

    NCRenII yellow fever

    Far Nor Cal
    Joined:
    Sep 22, 2017
    Messages:
    431
  13. Mar 19, 2018
    NCRenII

    NCRenII yellow fever

    Far Nor Cal
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    Sep 22, 2017
    Messages:
    431
    here's some pics of tire orientation.
    The Renegade II rims are 8" outside to outside and 7" wide bead to bead. Offset is zero (centered). <- need to check this I previously measured it -1" offset
    The Ko2's are listed as 30x 9.50 tread width is 8" and sidewall to sidewall is about 9" (with the 7" rim width that likely pulls the sidewall in just a bit.
    I think these are just about perfect (save for the slight rub I may incur when the rear diff is foo center to the extreme
    fr tire.jpg r tire.jpg
    Front Tire Orientation Rear Tire Orientation
    . ive been robbed.jpg
    I've been robbed they are not 9.5" wide :cry:
     
    Last edited: Mar 21, 2018
    Hellion and CJMark like this.
  14. Mar 20, 2018
    CJMark

    CJMark Jeeper

    Spearfish, SD
    Joined:
    Mar 7, 2014
    Messages:
    101
    KaiserWillys also has reproduction rims.

    Steel Civilian Wheel Rim 16
     
  15. Mar 21, 2018
    jeepinnh

    jeepinnh New Member

    new hampshire
    Joined:
    Jan 25, 2016
    Messages:
    16
    looks like every carries that specific rim, seems narrow, looks like its only 4 1/2 in wide inside to inside. might be the closest thing. prices are all over the place.
     
  16. Mar 21, 2018
    NCRenII

    NCRenII yellow fever

    Far Nor Cal
    Joined:
    Sep 22, 2017
    Messages:
    431
    on a 4.5" rim Pizza cutters are about the only tire that can be run. 255/85R16 33.5 are over 10" wide, I would not consider them on that narrow a rim. Even a 245/75R16 is not recommended for anything less than 9". Tire selection can become an issue, one needs to start thinking 650-16. Or, look to a wheel manufacturer (stockton wheel Model 20 or 22) and select width and back-set that will yield steelies that can accomodate modern tires.
     
    Last edited: Mar 21, 2018
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