Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Correction Mods for 6" Lift?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by SAVAGE1, Feb 14, 2001.

  1. SAVAGE1

    SAVAGE1 1/2 ton status

    Joined:
    May 22, 2000
    Posts:
    1,104
    Likes Received:
    0
    Location:
    BAY AREA, CA
    Correction Mods for 6\" Lift?

    I've been debating between a 4" & 6" lift. I'm afraid if I go with the 6" I will be dumping more cash into correcting the steering & driveline. Besides a new steering arm, what needs to be done if I go 6 inches? I know all trucks act different, I just want to get a general idea.

    Thanks in advance,
    Rod

    BLAZER FOOD!!
    [​IMG]
     
  2. Emmettology 101

    Emmettology 101 3/4 ton status

    Joined:
    May 9, 2000
    Posts:
    8,126
    Likes Received:
    0
    Location:
    FL
    Re: Correction Mods for 6\" Lift?

    All I have on mine is a 4" steering arm and a front driveshaft spacer. Although my springs are Superride and seem to give the lift of a 4" HD......

    Also, I would recommend getting the rear driveshaft lengthened...

    HTH

    Mike [​IMG]
    See <font color=green>EMMETT</font color=green> -&gt; <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

    Joined:
    Jan 12, 2001
    Posts:
    32,076
    Likes Received:
    55
    Location:
    .
    Re: Correction Mods for 6\" Lift?

    If you have just the 4" steering arm, get the drop pitman arm from Skyjacker. This will level the drag link to an even better angle. It will be damn near horizontal. The front driveshaft I would recommend a new longer one and also for the rear shaft, too. Try to get springs that have a slight tapered degree shim on the bottoms of the packs. This will aid in helping the pinion angle to turn it up to the t-case for better operating angle. I ran 6" on a short bed truck with 2.5 degree shims on front and rear springs and the 4" arm with the 2" pitman arm. The whole set up worked great. Make sure you drop the sway bar to a better angle too. New brakelines are very highly recommended as I had new Skyjackers installed on the 86.
     
  4. Re: Correction Mods for 6" Lift?

    my previouse blazer had a 6" with 35s. besides the steering arm I dropped the t-case, shimmed the front axle 2 1/2 degrees, relocated the front brake lines and lengthened the rear drive shaft. it had bad bump-steer and always pulled to the right in a panic stop. Off road it kicked ass. you'll have to decide what's more important. i'm also on the fence between 4 and 6" with my current rig. hope this helped. good luck
     
  5. SAVAGE1

    SAVAGE1 1/2 ton status

    Joined:
    May 22, 2000
    Posts:
    1,104
    Likes Received:
    0
    Location:
    BAY AREA, CA
    Re: Correction Mods for 6\" Lift?

    Where do you get longer drive shafts? Do you replace the the whole thing or is there a kit of some sort to lengthen them. I plan on getting the lift from ORD so do the TC springs come shimmed or do I have to get those too. As for the T-case, from what I understand, is easy to drop. I'm starting to get worried about the cost. What should I be planning to spend for the driveshaft stuff, pitman arm, and shims?

    Thanks for the help.

    Rod

    BLAZER FOOD!!
    [​IMG]
     
  6. Re: Correction Mods for 6" Lift?

    any good machine shop will do your driveshafts. all they do is cut the shaft off at the ends where your u-joints mount and weld on longer tubes. the shop I went to just had me measure from yoke to yoke once my truck was lifted and they did the rest. It was only around $200. now if your shaft is shot or you want thicker tubing the price goes up. you'll have to do it on the rear for sure with 6". I didn't use a dropped pittman, I used a raised steerign arm-around $50. shims are like 15-20 bucks. Go for 6", dude, Its looks so cool when it's done!
     
  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,180
    Likes Received:
    1,388
    Location:
    E-town baby!
    Re: Correction Mods for 6\" Lift?

    So if you can't decide between a 4" or 6" why don't you do a 4" and a 1" ORD body lift? 5" of total lift with less to 'correct'.[​IMG]

    Rene

    [​IMG]
     
  8. SAVAGE1

    SAVAGE1 1/2 ton status

    Joined:
    May 22, 2000
    Posts:
    1,104
    Likes Received:
    0
    Location:
    BAY AREA, CA
    Re: Correction Mods for 6\" Lift?

    I'm shootin for 6 inches now. I just called a guy who's parting out a Blazer his friend rolled. I think he's a member here. It was lifted 6 inches and has a driveshaft what was custom built & balanced. Would I be fine with my front driveshaft?

    BLAZER FOOD!!
    [​IMG]<P ID="edit"><FONT SIZE=-1>Edited by SAVAGE1 on 02/15/01 09:38 PM (server time).</FONT></P>
     
  9. Re: Correction Mods for 6\" Lift?

    are you going to keep your 35" boggers? I just installed 35" BFG mudders with my 2.5" lift and hacked the fenders also-pics of sawsall carnage soon. If you go 6 and keep the hacked fenders you could run 38s. or go 4 and 36s no prob. I have to say that is was very satisfying to cut my sheetmetal-very cleansing, almost spiritual.
     
  10. CaptCrunch

    CaptCrunch 1/2 ton status

    Joined:
    Feb 2, 2001
    Posts:
    3,596
    Likes Received:
    1
    Location:
    Minnesota
    Re: Correction Mods for 6\" Lift?

    I have been evaluatining the same decision and choose to go 6... just because 4 is barely worth all the trouble. Just curious what brand you are gonna choose? Thanks to some info from Emmett... it sound like add 2" to the rear shaft and he is running a 1" spacer... so I'm probably going to follow his lead... of course remeber sway bar kit... I also plan on running a dropo arm and either a drop draglink or 2" block to return the steering back.

    1987 Chevy K5 Blazer- 350 TBI
     
  11. SAVAGE1

    SAVAGE1 1/2 ton status

    Joined:
    May 22, 2000
    Posts:
    1,104
    Likes Received:
    0
    Location:
    BAY AREA, CA
    Re: Correction Mods for 6" Lift?

    HAHAA. Blue, When I got the Boggers in, my truck was on the stock lift... it still is. I just wanted to see if those big meats would fit. Well when I got them on I was suprised they fit. The front barely cleared the corners of the fenders by like 1/2 an inch. Busting out the SawsAll was like reflex. I didn't even give it much thought. I'm gonna stick with the Boggers til they wear out.

    Thanks for the advice guys.

    Rod

    BLAZER FOOD!!
    [​IMG]
     
  12. DPI

    DPI 1/2 ton status

    Joined:
    Jun 22, 2000
    Posts:
    2,792
    Likes Received:
    1
    Location:
    In the Burbs close to Tulsa, OK
    Re: Correction Mods for 6\" Lift?

    Your front shaft will need to be legthened too.
    You guys that used the 2.5 Degree shims, did that screw with your steering at highway speeds? Does it wander all over the road? I just did a 5.5" BDS lift and my front U-joint is at a severe angle and vibrates @ 35 mph. But, I did not want to put shims in if it was going to screw with my steering too much.

    [​IMG]
     
  13. bigblue

    bigblue 1/2 ton status

    Joined:
    Dec 6, 2000
    Posts:
    658
    Likes Received:
    0
    Location:
    southern california
    Re: Correction Mods for 6\" Lift?

    I have a 6 inch lift. the front seems fine but does wander a bit because of old steering compnents and worn ball joints but i have the original front drivshaft and so far it has help up. I have read that superlift makes a spacer for the front that would in essence lengthen the front. I personally wouldn't shim the front unless vibration is BAD. The rear was a different story and caused me some grief. i had a 1 ton cv style conversion and still the thing vibrated terribly. i then lowered the t-case and it has helped significantly. i still feel a little vibe but barely noticable. the rear pinion is angled at 4 degrees at it definately is not enough. i am choosing to live with it until i can get a 14 bolt where the perches will be welded at the appropriate angle. Go with the 6 incher, i think it looks better.

    baja surf nazi -...A late storm NEVER comes...

    [​IMG]
     
  14. CaptCrunch

    CaptCrunch 1/2 ton status

    Joined:
    Feb 2, 2001
    Posts:
    3,596
    Likes Received:
    1
    Location:
    Minnesota
    Re: Correction Mods for 6\" Lift?

    Hey DP_90K5... How was the vibration on the rear shaft? What did you do w/ the BDS kit? Lengthen d-shaft? drop t-case? I'm looking to possibly us BDS for my 6" lift.

    Also BigBlue... what lift kit are you running?

    1987 Chevy K5 Blazer- 350 TBI
     
  15. bigblue

    bigblue 1/2 ton status

    Joined:
    Dec 6, 2000
    Posts:
    658
    Likes Received:
    0
    Location:
    southern california
    Re: Correction Mods for 6\" Lift?

    National Spring...The best in my opinion...

    baja surf nazi -...A late storm NEVER comes...

    [​IMG]
     
  16. DPI

    DPI 1/2 ton status

    Joined:
    Jun 22, 2000
    Posts:
    2,792
    Likes Received:
    1
    Location:
    In the Burbs close to Tulsa, OK
    Re: Correction Mods for 6" Lift?

    Here is what I have: Dana 60 front with 5.5" BDS springs. The front actually sits up about 7" higher than before the lift(dana 60 has higher spring perches). The rear I went with 4" BDS springs and the 4" shackle flip. So 8" in the rear and it is about level with the front. I lowered the case but got a binding sound in reverse, so I put it back up. I have a cadillac cv installed on the rear shaft to compensate for the severe angle at the t-case. The ride is excellent. It is better now than with the factory setup. I do use the RS9012s all the way around with a setting of 1 for normal street driving. Here is a picture of my CV. Oh by the way, with the CV I have no vibration from the rear at all. <IMG SRC="http://albums.photopoint.com/j/View?u=1439605&a=10797147&p=37538560&Sequence=0[/image]

    [image]http://www.davidcityfire.com/fireanimate.gif">
     
  17. CaptCrunch

    CaptCrunch 1/2 ton status

    Joined:
    Feb 2, 2001
    Posts:
    3,596
    Likes Received:
    1
    Location:
    Minnesota
    Re: Correction Mods for 6\" Lift?

    Kewl! Where did you purchase that? How much was it? Why the binding after lowering the t case... maybe the shaft too long?

    1987 Chevy K5 Blazer- 350 TBI
     
  18. DPI

    DPI 1/2 ton status

    Joined:
    Jun 22, 2000
    Posts:
    2,792
    Likes Received:
    1
    Location:
    In the Burbs close to Tulsa, OK
    Re: Correction Mods for 6\" Lift?

    I had a local drive shaft co. make it. It was about $200 to have it added to my shaft with all new parts. Not sure why the binding. I think it is more to do with my motor mounts binding up than anything. I do not have a problem with the case up.
    I am going to eventually go with a fixed yoke 205 or the fixed yoke conversion for my 241. Probably the 205 mounted to my 700r4.

    [​IMG]
     
  19. Re: Correction Mods for 6\" Lift?

    getting back to degree shims up front. You could try clearencing the the yoke and driveshaft with a grinder to elliminate bind. this might let you skip the shims. I never tried this but have heard it works
     

Share This Page