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14blt ff grinding for ground clearance?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by baldbandit, Apr 25, 2001.

  1. baldbandit

    baldbandit 1/2 ton status

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    Has anyone ground anything off of the bottom of the pumpkin on a 14 blt ff to gain more ground clearance? If so, do you have any pics that you can post? How much did you take off?

    thanks
    baldbandit

    "Have you outdriven a F**D lately?"

    Check out my site!
    <A target="_blank" HREF=http://www.baldbandit.coloradok5.com>http://www.baldbandit.coloradok5.com</A>
     
  2. Twiz

    Twiz 1/2 ton status

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    Haven't done it, but just looking at them, I think you could grind the wee out of 'em and be O.K., all the way into the cover and past. I think the only problem you would run into would be the cover to houseing seal and bum cover bolts. The houseing is EXTREAMLY stout and would be able to handle the extra stress of the missing portion. Just a guess, I think you could shave off a good 3/4" maybe alittle more no-problem, past that I think you would need to get creative with sealing the thing up. Just some random thoughts, bounceing between my ears.

    Twiztid
     
  3. baldbandit

    baldbandit 1/2 ton status

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    I have been thinking of this for awhile, but I never seem to think about it when i'm under my truck. I do not do any rock crawling or hard core wheeling ( mainly mud) so i felt that the added ground clearance would out way what little strength that i would loose. I really didn't want to take off so much that sealing the cover becomes a problem. I was thinking about a 1/2" or maybe 3/4" but that was just kinda guesing since i haven't looked at it yet.

    baldbandit

    "Have you outdriven a F**D lately?"

    Check out my site!
    <A target="_blank" HREF=http://www.baldbandit.coloradok5.com>http://www.baldbandit.coloradok5.com</A>
     
  4. wayne

    wayne 3/4 ton status

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    Someone on the site said you can take almost an inch off and still be safe. I plan to grind mine before I install it.

    <A target="_blank" HREF=http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html>http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html</A>
    <font color=blue>Happy Trails<font color=blue>
    <font color=blue>Wayne<font color=blue>
     
  5. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    If ya look at the 14 from the pinion side you'll see the lip that can be ground off. As is it acts like an anchor and as far as I can tell 3/4" is about what you'll get without cover troubles...[​IMG]

    Rene

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  6. doonjumper

    doonjumper 1/2 ton status

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    Buy lots of grinding disks!

    [​IMG]
     
  7. xtreme_wlr

    xtreme_wlr 1/2 ton status

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    I left mine alone and just made a skid plate for it. Works great.

    <A target="_blank" HREF=http://65.11.18.114/images/rearshocks/fnshskid2.jpg>http://65.11.18.114/images/rearshocks/fnshskid2.jpg</A>

    '78 Chevy 1 ton Stepside RockCrawler
    468 BB, SM465, NP205
    D60 front, GM 14Bolt rear w/ Detroit
    <A target="_blank" HREF=http://65.11.18.114>http://65.11.18.114</A>
     
  8. extremeblazer

    extremeblazer 1/2 ton status

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    I actually ground my 14 bolt FF. I removed a little over 3/4 of an inch. I ground right to the bottom of the bolts on the cover. This removed a little bit of the cover but not enough to make it leak. I also ground the remaining ridge back at an angle to the front of the truck to create a smooth transition to the rear, leaving nothing to catch on. The axle has been used in the truck for about five months and I have had no leaks.
     
  9. AZK5

    AZK5 1/2 ton status

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    It might be quicker to use a Sawzall and then a grinder. I can't imagine grinding 3/4" of casting away, doh! I plan on removing 1/2"-3/4" off of my Dana 60's. I'll cut until I reach the bottom of the bolts.
    CB
     
  10. 6.2Blazer

    6.2Blazer 1/2 ton status

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    I ground the bottom of my 14 bolt FF up to the lower cover bolt, probably about 3/4". I've had no leaks so far but really haven't driven it much yet.
    I used an air-powered cut-off wheel to cut the biggest chunk of it off and then followed up with a grinder to clean it up.
     
  11. CST-30

    CST-30 Registered Member

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    Hey extreme wlr I really like your skidplate, do you have any more pics or specifications on it.
     
  12. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    I plan on doing this some time in the future, might just use a skill saw with metal carbide blade for the big cut then a grinder to make it smooth.
    The lip is 3/4" I think and would be like moving up 1-1/2" in tire height.

    Steve
    [​IMG]
    Mall-Running poseur 4x4 with curb-feelers
     
  13. pcorssmit

    pcorssmit 1/2 ton status

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    Why would you want to go to 16.5's?

    Pete

    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  14. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    16.5's where did that come from? Me no understand.

    Steve
    [​IMG]
    Mall-Running poseur 4x4 with curb-feelers
     
  15. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Wheel height vs. tire height...getting yer chain yanked methinks[​IMG]

    Rene

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  16. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    Damn him [​IMG]

    Steve
    [​IMG]
    Mall-Running poseur 4x4 with curb-feelers
     
  17. pcorssmit

    pcorssmit 1/2 ton status

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    Sorry Steve, I was just trying to express the intellegence of my derriere.

    Pete

    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  18. pcorssmit

    pcorssmit 1/2 ton status

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    Come on now, no fair fixin' it!

    Pete

    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  19. 85GMCJimmy

    85GMCJimmy Registered Member

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    i have seen peterson's have an article on shaving a pig
     
  20. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    I'm not home now (in OR) but I remember that article. Seems like they even ground into the bolt hole on the bottom. Then they bent a piece of 1/8(??) steel plate to fit against the bottom and welded it in place to smooth the whole thing and add a little strength back.

    Bad Dog

    85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56 Locked
    Soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
     

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