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Transfer Case Drop Kit

Discussion in 'The Garage' started by caleb22, Mar 18, 2006.

  1. caleb22

    caleb22 1/2 ton status

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    Anyone know of a transfer case drop kit for a 89 K5? I came across one that BDS makes but I can't find anyone who sells it.
     
  2. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    you can just take the spacers that are on the top inside the frame and move them to the bottom.
     
  3. Blue85

    Blue85 Troll Premium Member

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    I don't see why you need a "kit". Just use the factory spacers (like he said) or find a couple pieces of square stock and drill two holes in each.
     
  4. 88Silverado

    88Silverado 1/2 ton status

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    Heres a picture of the factory spacers just moved around to the other side. If your going to do hard wheeling the best setup is to get a 1" square bar and drill hols in it. Most just move the factory spacers.
    [​IMG]
     
  5. rlhenry

    rlhenry Registered Member

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    I used 1x2 square tubing about 6 years ago and they are still going strong.
     
  6. sunnyc123abc

    sunnyc123abc 1/2 ton status

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    Did you guys experience any tranny or t-case leakage due to the drop?
     
  7. hack500

    hack500 1/2 ton status

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    be aware that putting the factory spacers like shown in the pic can tweak the bottoms of the frame rails... atleast it happened on mine.
     
  8. scrappyk5

    scrappyk5 1/2 ton status

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    you can use the factory spacers which i did at first , but i got alot of popping which meant i needed something betta. so i cut some 1x1 squares that were 1/4" thick and used them. been working great and no more popping. :D
     
  9. roadnotca

    roadnotca 3/4 ton status

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    Its so clean, and new exhaust?
     
  10. loafer

    loafer 1/2 ton status

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    purpose of spacers...

    The purpose of the origional factory spacers is to increase the bolt grip, not as a means to drop the t-case. Yes, it does work, and I've tried it too, but it bent the crap out of my frame. A solid block of steel is a better choice for a spacer.
     
  11. Leper

    Leper 1/2 ton status

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    I have a ORD drop kit that I never used if you want to buy it. 50.00 shipped.
     
  12. roadnotca

    roadnotca 3/4 ton status

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    You got me curious, increase the bolt grip?
     
  13. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    x2.
     
  14. 88Silverado

    88Silverado 1/2 ton status

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    I keep all my vehicles drivetrain clean. I do wheel the Blazer but when I return I steam clean it to look for cracks and leaks. I Hate working on greasy vehicles in my old age.
    The crossover pipe is new since I had to do some exhaust work and got tired of the front shaft hitting it so had a slightly modified one installed. Still waiting to crush it on a rock but it hasnt happened yet.
    As I said the factory spacers can be used to perform the drop but the best way is to use a block type material, as mentioned in this thread, to distribute the load to prevent tweaking or cracking of the frame rail.
    Mine has a slight leak from the rear case seal but thats not due to the t-case being dropped, its due to a bad seal. In fact the seal from the trans to the case is also bad so every couple of oil changes I remove the t-case fill plug, drain out the excess, then top of the transmission fluid (flow-thru design :)). The best way to set this up is with a high-angle driveshaft but I dont have the money for that. I do have replacement blocks drilled just havent installed them yet.
    I was really suggesting the poster should try dropping the case to see if that gets rid of the vibe problem. So he can either try the factory spacers, a drop kit, some blocks or say screw it and get a new driveshaft.
     
  15. sarasotausmc

    sarasotausmc 1/2 ton status GMOTM Winner

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    So you guys advocating the blocks instead of flipping the spacers, you talking about using the blocks and spacers or just blocks with no spacers?

    Not trying to hijack, just had a similar question.
     
  16. roadnotca

    roadnotca 3/4 ton status

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    Same sound reasoning as swapping to more durable axles, HD:D
     
  17. 88Silverado

    88Silverado 1/2 ton status

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    Order of preference:
    1) High angle driveshaft
    2) Blocks to shim down t-case
    3) Use factory spacers to shim down t-case

    Use either blocks or spacers but do not use both together.
     
  18. rick88blaze

    rick88blaze 1/2 ton status

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    I used the factory spacers at first. I caught my crossmember last summer and tweaked my frame. After that I picked up some 1" by 2" tubing. I cut and drilled it for my t-case drop now and haven't had any more problems. :D

    Rick
     
  19. sarasotausmc

    sarasotausmc 1/2 ton status GMOTM Winner

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    gotcha, thanks 88silverado
     
  20. loafer

    loafer 1/2 ton status

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    Bolt grip is the length of bolt between the nut and bolt head. If the grip length is too short it cannot be properly preloaded and will have a tendency to loosen; Think of the bolt as a spring with a high stiffness. The spacers basically insure that the spring is long enough for the given diameter. As a general rule of thumb, the grip length should be at least 2.5x the bolt diameter. Make any sence? :doah:
     

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