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6" Lift and 38s Question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by blazer_87, Oct 12, 2001.

  1. blazer_87

    blazer_87 Registered Member

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    6\" Lift and 38s Question

    I have and 87 stock Blazer. I am thinking about 6" suspension, 15x14 wheels, and 38's. Looking for any advice. I would like to find out what extras (brake lines moves, spacers.....) I will need to consider. I have never done this before and need all the advice I can get. Thanks in advance for the help!!
     
  2. outlaw612

    outlaw612 1/2 ton status

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    Re: 6\" Lift and 38s Question

    I just did a 4" lift and know you will need longer brakelines to replace your rubber lines, a 4" steering arm, I know with a 6" you are suppose to replace one of the other arms, but dont remember exactly so someone else will have to help from here.

    <a target="_blank" href=http://www.geocities.com/outlaw613/K5.html>http://www.geocities.com/outlaw613/K5.html</a>
     
  3. blazer_87

    blazer_87 Registered Member

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    Re: 6\" Lift and 38s Question

    Will 38's even fit with just 6" suspension?
     
  4. shaggyk5

    shaggyk5 1/2 ton status

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    Re: 6\" Lift and 38s Question

    good amounts of trimming will be needed, but you should be able to do it.

    --matt
    <font color=blue>86, 350 crate, 33's.</font color=blue>
    <font color=red>Lop Sop Doi Off-Roader</font color=red>
     
  5. tlarsw

    tlarsw 1/2 ton status

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    Re: 6

    I'm running 38x15.5x16.5s on 12" wide wheels on 6" suspension and 3" body and I still had to do some trimming.

    38s on 6" lift only, unless it's only used on road, would require significant trimming.

    1986 K10 TPI350/NV4500/Gen2 Doubler/D60(ARB)/14FF(Detroit)/4.56 gears
     
  6. DesertDueler

    DesertDueler 1/2 ton status

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    Re: 6

    I am getting ready to do 38.5x14.50/15 on my Jimmy with 4" lift. I need to cut alot of the fender but it can be done.

    86Jimmy 4"&35"MTRs,87 burb 4"&35"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  7. blazer_87

    blazer_87 Registered Member

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    Re: 6

    Why the big tires and only 4" lift? Are you talking about fender trimming in the fender well or on the outside?
     
  8. shaggyk5

    shaggyk5 1/2 ton status

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    Re: 6

    big tires and no lift =good ground clearance and a low CG.

    he is actuall closer to 5-6 inches i think, because he runs no hardtop or doors, so it sits higher.

    you will have to trim more of the outer fenders, and probably some of the inners, it all depends on how much you are going to flex. Check out Steve Fox's (coloradok5) post called: "Fender Cutting: tons of pics" thats about what you are looking at on the outer fender. inners are dependant on flex. (BTW, stve is running 5-ish inches and 37" tires)

    --matt
    <font color=blue>86, 350 crate, 33's.</font color=blue>
    <font color=red>Lop Sop Doi Off-Roader</font color=red>
     
  9. blazer_87

    blazer_87 Registered Member

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    Re: 6

    So do you think I will have to change my 3.73 gears?
     
  10. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: 6

    You should change your gears...especially if you have the 700R-4. Matter of fact you should look into one ton diffs for that size of tire. The ten bolts might live for a while if you don't wheel it hard and you're lucky but I wouldn't look to them for a long term solution.

    With the 700R4 I would think 4.56's should be the minimum and 4.88's would be about ideal with 38's.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  11. txbartman

    txbartman 1/2 ton status

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    Re: 6

    From what I have seen on this board, I wouldn't go with 38s on 10-bolts. One is because of the amount of torque you are going to be transferring through those axleshafts. Secondly is because of the 6-lug wheels. That's a pretty big tire for 6 lugs.

    You could probably find a 14 bolt rear with the gears you want for less than new gears and installation for your 10 bolts.

    Just my .02

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  12. blazer_87

    blazer_87 Registered Member

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    Re: 6

    what about a 4" suspension, 35x12.50's, 3.73 gears?? and 700R4
     
  13. KrebsATM02

    KrebsATM02 1/2 ton status

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    Re: 6

    your going to be trimming and i'd say no on the gears. I got 4.10's on 35's and wish i would have gotten 4.56's


    Doug Krebs
     
  14. TXsizeK5

    TXsizeK5 1/2 ton status

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    Re: 6

    I have 6" and 35's and ive rubed before not bad i was going fast and there was this shallow ditch thing.. its hard to explain but i did. Other than that ive never rubed... flexing.. rock crawling...etc... im getting 4.56 illt ell you how they work on my 35's my stock gears are crappy. I have to rev it more than normal to get it moving in 1st or it will stall.. in low it will go just by me letting the cluthc out a lil and letting it catch. In 1st it will stall if i do that, in theory 4.56 should help with that... maybe im just crazy... but i should have my geras in today and installed by sunday =)
    10 bolts arent bad for holding up... my friend runs 44's on his 10bolt but broke his 4.11's and now he has 5.13's and hes been fine ever since lol

    6in 87' K5 w/ 35" BFG muds.
    305/Sm465/ NP208
    Kn filter and 4.56
    "Those who live by the sword get shot by those who don't"
     
  15. zakk

    zakk 1/2 ton status

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    44\'s!?!?!

    44's on a 10bolt? is it that guy in this month's Fourwheeler with the red '78 (if i remember right)
    no way you could 'wheel with a 10bolt...let alone with 44's or at least not the way i do [​IMG]

    -Zakk
    '77 K5 SB 400 TH350 NP203 p/t 6" Lift D60 14BFF 4.10's 36"Wrangler II's

    [​IMG] MOAB 2002 OR BUST!! [​IMG]
     
  16. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: 6\" Lift and 38s Question

    Well, once again, here is a pic of my old truck with 6" suspension lift (THAT'S IT, nothing else!), and Bushwacker cut-out flares riding on 46" Firestones!!! [​IMG]
    <a target="_blank" href=http://community.webshots.com/photo/17809025/17809746BdlBCGSodv>http://community.webshots.com/photo/17809025/17809746BdlBCGSodv</a>


    <font color=red>I'm a "black top mudder"!!!</font color=red>

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
     
  17. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: 6\" Lift and 38s Question

    My friend runs 44s on his Dana 44 front and it's never broken.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  18. blazer_87

    blazer_87 Registered Member

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    Re: 6

    WOW! I would not have believed it unless I seen the pic. I am new to wheelin and have a lot to learn. Would you care to give up any secrets? Do you have any inner fenders? What gears are you running? I am running 3.73 gears and dont have the $ to change them anytime real soon. I dont want to go that big, yet. I would actually like to keep my lift as little as possible, keep my gears and fit the biggest tires I can. So is your set up mainly for mud or rock crawler or both? Any suggestions will be great! Thanks
     
  19. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: 6

    Well, don't get too excited!! [​IMG]

    To make a long story short, those tires belong to a friend of mine who has them on his Ford. Check out my profile and click onto my webshots.com site page. You will see his Ford pics on there.

    Anyways, back to the short story. [​IMG] We were bored one day, so we got an idea to put those big tires on my K30 in place of the "smaller" 39" Mickey Thompsons. Well, the Firestones fit, but rubbed the Bushwackers on the corners of the front flares. They rubbed real bad when turning corners. We pretty much went from my house to the sand pit for these pics and then back home.

    That K30 with the bigger tires was nothing special. Just a plain Jane truck with a built 454, 4 speed manual, 205 case, D60 and 14FF with 4.10's, and I ran the gears in 2nd and lo-lock. Just mashed the gas and watched the windshield get dirty. [​IMG] Needless to say, we had a lot of fun that day!!

    BTW, I would not recommend these tires for anything like what we did. Nor driving on the streets either. They shook and shimmied too much. They were just flat out too big. [​IMG]

    <font color=red>I'm a "black top mudder"!!!</font color=red>

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
     
  20. DesertDueler

    DesertDueler 1/2 ton status

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    Re: 6

    shaggy's right. I am closer to 6"s now because of no top, no doors, and a plexyglass windshield. The reason is because I like the low center of gravity and high ground clearence for rock crawling. If you get too high it is easy to roll over. But if you play in mud then you can go as hgh as you want because it is almost impossible to roll in mud. BTW I have rolled the Jimmy once 5 and 3/4 times down a 75 foot hill thats pretty close to a 70 degree incline. I was on four inch lift and 35s, but that was will the top and doors on, so taking those off helped bring the center of gravity back down.

    86Jimmy 4"&35"MTRs,87 burb 4"&35"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     

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