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What are these RPO codes?

Discussion in 'The Garage' started by broc944, Feb 22, 2006.

  1. broc944

    broc944 1/2 ton status

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    I have looked at every RPO chart I can find, and none of them have these three codes, XYT, YYT,ZYT. Anyone have any info on these three?
     
  2. rick88blaze

    rick88blaze 1/2 ton status

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    I couldn't find any ending in T but the ones below are the closest thing there is on my RPO list:

    XYN : LT235/85R16E, R/PE, ST TL ALS BL FRONT

    YYN : LT235/85R16E, R/PE ST TL ALS BL REAR

    ZYN : LT235/85R16E, R/PE ST TL ALS BL SPARE


    All 3 of these refer to front, rear, and spare tire size. What kind of truck are the codes from?

    Rick


     
  3. broc944

    broc944 1/2 ton status

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    I saw these also, I have a 91 Burb, PO told me it was a special order State vehicle, a couple of the RPO codes sort of confirm his statement. So I am thinking it might of came with a set ouf non-standard size tires.
     
  4. rick88blaze

    rick88blaze 1/2 ton status

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    That could be. Sorry I can't help you out more.

    Rick
     
  5. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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  6. 85k30

    85k30 Registered Member

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    the codes stand for LT235/85r16-e on-off road steel belted radial ply blackwall. xyt- front k2-3 series only yyt-rear c-k2 or k3 series only. zyt- spare c-k2 or k3 series only.
     

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