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another qusetion on lowering the t-case

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by xnoahx, Aug 18, 2001.

  1. xnoahx

    xnoahx 1/2 ton status

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    ok, im going to lower the t-case and i just want to make sure that im doing it right. you remove the two bolts that are on the frame support that come off of the t-case(NP203) and remove the spacers and put the bolts back in put the spacers on the bottom of the frame and tighten the bolts. Is this all correct and is it just the support comming off the pasanger side of the t-case?

    Check out my 73 K5 <a target="_blank" href=http://members.theglobe.com/xnoahx/73k5.htm>http://members.theglobe.com/xnoahx/73k5.htm</a>
     
  2. SWAMPRNR

    SWAMPRNR 1/2 ton status

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    Should Be Two Bolts On Each Side Of The Crossmember. Put The Spacers Between The Crossmember And Frame And Your Done

    A Big Hammer Can Fix Anything ..
     
  3. countprowler

    countprowler Newbie

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    I lowered my T case the same way you are thinking of after I lifted my Blazer. It wasnt quite enough, I still had vibration problems. I ended up using two peices of 1-1/4" X 2" X 4-1/2" mild steel blocks and drilled them out (For a 1-1/4" drop). This will also keep your T-case from moving around from using those tube spacers and no more vibe.
     
  4. 79ChevySB

    79ChevySB 1/2 ton status

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    How much lift did you put in? Im looking at a 6" lift and am wondering if I have to drop my case or not. Thanks!
     
  5. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    There seems to be no cut &amp; dried answer as to weather or not you will need to lower the case. The slip yoke cases have the worst problems, though. If your 203 is still fulltime you will be making the angle on the front worse as the back gets better. This no big deal with a part time case, because the front shaft rarely turns at speed. But with a full time...

    Jim '80 GMC & '73 Blazer
    Tread Lightly!
    <a target="_blank" href=http://www.gmck5.rockcrawler.com>www.gmck5.rockcrawler.com</a>
     
  6. SWAMPRNR

    SWAMPRNR 1/2 ton status

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    Mine Has A 4inch Lift. You May Have To Drop It Lower For A 6inch Lift To Keep The Front Shaft From Binding.

    A Big Hammer Can Fix Anything ..
     
  7. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    Dropping the case will make it WORSE on the front shaft. The problem is you are not really "dropping" the case, you are tilting it. The only way this would help the front angles is if you lowered the motor mounts.

    Jim '80 GMC & '73 Blazer
    Tread Lightly!
    <a target="_blank" href=http://www.gmck5.rockcrawler.com>www.gmck5.rockcrawler.com</a>
     

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