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Greg72 Do your tires rub?

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by LKJR, Jan 13, 2002.

  1. LKJR

    LKJR 1/2 ton status

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    Greg, hey on your setup, 2" body, 4" suspension on 35's if I recall do you get any rub with your tires in the wheel wells or fenders? thanks bud

    Like em big and topless
    Excuse me...Would you mind removing your import from under my chevy?
     
  2. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Les,

    NOPE. No rubbing.....BUT keep in mind my so-called-35's are only about 33" diameter.

    If you checked my other discussion thread about the RTI score I did, I have a front brake line problem (too short) that's limiting me from really "stuffing" the tires to check everything out. The "fangs" had already been cut off the front fenders, so that's not an issue.

    I suspect once I get the front brake lines lengthened, the rear e-brake cables will be the next thing to cause difficulties. Ideally, I will switch over to an NP205 mounted e-brake setup, and remove those other cables completely.

    Hope that helps.



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  3. LKJR

    LKJR 1/2 ton status

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    Yes indeed you are correct 35's on measure 33" and the brake line problem you have is common from the reading I recall doing on here. so thanks bud, Nice job on your ORD Shakle review on your page.

    Like em big and topless
    Excuse me...Would you mind removing your import from under my chevy?
     
  4. skyblazer

    skyblazer 1/2 ton status

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    Greg, I second the kudos on the shackle flip documentary. Just wondering what your pinion and t-case output angles are? Mine are off by quite a bit. I think (it's been a while) that the pinion is up 13 degrees and the output shaft is down 6. Anyway, it looks like I'll be shimming or cutting the spring perches.
     
  5. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Sky,

    I can't give you exact angles, but I can tell you that the axle pinion is pointed higher now than it was with the 4" blocks.....I'd say it's ALMOST at 0 degrees (pointing straight into the driveshaft). As for the angle off the NP205 side.....no idea. I don't think I've got vibrations in the driveline.....I'm guessing it's the kind of thing that you KNOW you've got!!!!

    Once I do the 14BFF swap, I will invest more time in dialing-in all the angles and understanding all that better....for now, I'm just driving it AS-IS.



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  6. skyblazer

    skyblazer 1/2 ton status

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    That's good news. I plan to stick the driveshaft back in and take the truck on its maiden voyage sometime soon. I'll cross my fingers and hope I don't get any vibes...ORD told me that they shoot for a angular difference of 2 degrees or less...I think I have 6 or 7.
     
  7. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    SkyB,

    Here's a link I found that explains those angles a bit better than I can:

    See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38
     
  8. skyblazer

    skyblazer 1/2 ton status

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    Excellent article! I appreciate the link. I'm very suprised with the recommendation for a 3* maximum angle on the d-shaft....have to check mine. The other part that grabs my attention is how the pinion and the t-case must be parallel. If not, the u-joints are travelling through different arcs at each end of the driveshaft, which could cause vibes. Hmmmmmm.
     
  9. skyblazer

    skyblazer 1/2 ton status

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    Re: Greg72 Do your tires rub? *DELETED*

    Post deleted by skyblazer
     
  10. californiak5

    californiak5 1/2 ton status

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    You must have liked that artical to repeat yourself 3 times..........[​IMG]

    See Ya,
    Keith

    "Your just mad cause the voices only talk to me."

    <a target="_blank" href=http://coloradok5.com/gallery/californiak5>CaliforniaK5's Pictures</a>
     
  11. skyblazer

    skyblazer 1/2 ton status

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    Whoops, I wondered why my computer locked up.
     
  12. 69K5

    69K5 1/2 ton status

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    Greg,
    What did you mean by fangs?? I am going to eventually get my blazer painted, but I want to run 35's. So I figured that would be a good time to do it. I just dont want it to look like I cut the fenders. How much was cut off of yours??
    thanks
    nathan
     
  13. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Nathan,

    The K5's came from the factory with a very "pointy" lower fender area. If you are looking at your truck from the driver's side, it's in the lower left part of the front fender. The curve from the fender opening appears to actually "wrap around" the tire on the bottom side.

    Kinda hard to describe, but honestly if your truck is 100% stock, you should be able to see what I'm talking about. The cut you need to make is minor (maybe 4" x 4" x4") to remove a triangular piece, and then you simply graft on a flat metal plate to cover the hole.

    I could probably take a photo if that would help.... or you could just install the 35's. I guarantee it would be obvious VERY quickly where the "fangs" are!!! [​IMG]



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  14. 69K5

    69K5 1/2 ton status

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    Greg,
    I went and looked at your pics again. Is it off the bottom of the fender where it kinda curves under? Or is it cut out of the roundness ( I'm not sure of the right word ) of the fender well.
    thanks
    nathan
     
  15. 69K5

    69K5 1/2 ton status

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    Greg,
    Well I went out and looked at my blazer. I think I might know what it is now. Is it the part on the inside of the fenedr under thwe fender well, but part of the actual fender. It looks like a fang sticking down, and makes a triangle about 4 x 4 x 4. If that is the right part how does it give more tire clearence? On mine it doesnt look like it makes the opening any larger. My tires stick out a little and it looks like it would catch the outside edge of it and not the described part. This may be because mine isnt lifted yet also. sorry about all the questions. One more thing. It looks like I may be going home in 2 -3 weeks.
    thanks again
    nathan
     
  16. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Sounds like you might be describing the right thing....I think the "fang" modification is a change in both the fender &amp; the wheelwell liner.

    You have to imagine the tire going through it's entire range of motion AND the fact that the tire will sometimes be turned when it's "stuffing" itself into the fender. In some of those conditions it WILL hit that fang.....

    Worst case, you could always do the lift &amp; tires FIRST and then assess how bad the rubbing is in the fang area....then make the adjustments as needed....



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  17. 69K5

    69K5 1/2 ton status

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    I guess i'll just have to wait and see. I wont need alot of flex here, because I dont climb anything . Pretty much if the tire doesnt rub on the fram i'm ok. The big thing i'll have to do is get mine waterproofed. I usually have a foot or two of mud and at least that much water to push. watrproofing is the easy part. If you dont think it will get wet seal it anyway it will. I'll just wait and see.
    thanks again
    nathan
     

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