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Since this is the Center of Gravity...let's get some vehicle weight's.

Discussion in 'Center Of Gravity' started by yunit, Dec 18, 2003.

  1. yunit

    yunit 1/2 ton status

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    Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    I am looking to lighten my truck enough to not have to tow it with a diesel or big block truck.

    Ok, let's add up the weight, you guys fill in the blank's.

    Original Vehicle Weight = 4,379

    Original Equipment:
    Blazer Tub = 2000(top, doors, tailgate)
    Blazer Frame = 500
    350ci = 500
    TH700r4 = 100
    NP208 = 75
    10 bolt front = 300
    10 bolt rear = 250
    interior = 300
    tires = 50 a piece or 250 for all 5
    springs = 50 each
    4375lbs

    Added goodies:
    TH400 = 100+/-
    NP203 Range Box = 75
    Np205 = 150
    14 bolt ff = 500
    Dana 60 = 600 (with sleeved tie rod, hydro, and crossover stuff)
    42x15x15 TSL's on steel wheel's = 150 per corner...750 with spare
    High Angle Driveshafts = 90 for both
    Cage = ???
    future plate crossmember = 100

    added weight:
    np205 = 150
    14 bolt ff = 250
    dana 60 = 300
    tires & wheel's = 500
    driveshafts = 40
    plate crossmember = 100
    1340lbs

    Lost weight so far:
    doors = 150 for both
    top = 300
    tailgate = 125
    575lbs

    So right now my truck weighs around 5000 & 5500lbs give or take. /forums/images/graemlins/tongue.gif
    Dump the body and I at around 4000lbs...not too bad.
     
  2. Twiz

    Twiz 1/2 ton status

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  3. balzackks84

    balzackks84 1/2 ton status GMOTM Winner

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Better question for ya. Whats the unsprung wieght of the back of a blazer?
     
  4. XtrmChevy

    XtrmChevy 1/2 ton status

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    6000 lbs in this form. Still without 10000 Warn and something small.
     
  5. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Peter,

    Don't get me started!!! /forums/images/graemlins/grin.gif


    I may have to reveal my secret desire to remold my front fenders and hood in carbon fiber, and the all-titanium multilink suspension. An all-aluminum motor could save a few pounds too..... /forums/images/graemlins/cool.gif


    I'm actually QUITE serious about the carbon fiber stuff. I think the concept of making a fullsize K5 "light" is a hopeless cause, but at least I can have some influence on WHERE the weight is carried (like as LOW as possible)


    The part of your plan that I think is going to "get you" is how much it will cost to remove weight. Unless you are willing to simply butcher the whole truck down to Toyota sized proportions....finding lighter parts to replace heavy steel ones will probably cost a LOT more than just buying a decent used tow rig.

    If really feels like a "zero sum" game too. You fight for every pound you can lose, but then swap in a heavy roll cage, larger axles, heavy wheels/tires, a 2nd transfer case, etc, etc. It almost seems like a victory just to keep the weight from INCREASING..... /forums/images/graemlins/thinking.gif
     
  6. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Greg72, I hear you there. If you can keep your modified offroad blazer with lift, large tires, winch and rollcage to come in at factory weight you are doing pretty darn good in my book. Mine is going to end up a fat pig!!!
     
  7. HarryH3

    HarryH3 1 ton status Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Greg, ya forgot the helium filled tires! /forums/images/graemlins/wink.gif
     
  8. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    [ QUOTE ]
    I am looking to lighten my truck enough to not have to tow it with a diesel or big block truck.

    Ok, let's add up the weight, you guys fill in the blank's.

    Original Vehicle Weight = 4,379

    Original Equipment:
    Blazer Tub = 2000(top, doors, tailgate)
    Blazer Frame = 500
    350ci = 500
    TH700r4 = 100
    NP208 = 75
    10 bolt front = 300
    10 bolt rear = 250
    interior = 300
    tires = 50 a piece or 250 for all 5
    springs = 50 each
    4375lbs

    Added goodies:
    TH400 = 100+/-
    NP203 Range Box = 75
    Np205 = 150
    14 bolt ff = 500
    Dana 60 = 600 (with sleeved tie rod, hydro, and crossover stuff)
    42x15x15 TSL's on steel wheel's = 150 per corner...750 with spare
    High Angle Driveshafts = 90 for both
    Cage = ???
    future plate crossmember = 100

    added weight:
    np205 = 150
    14 bolt ff = 250
    dana 60 = 300
    tires & wheel's = 500
    driveshafts = 40
    plate crossmember = 100
    1340lbs

    Lost weight so far:
    doors = 150 for both
    top = 300
    tailgate = 125
    575lbs

    So right now my truck weighs around 5000 & 5500lbs give or take. /forums/images/graemlins/tongue.gif
    Dump the body and I at around 4000lbs...not too bad.

    [/ QUOTE ]

    OK, a few numbers look artificially high to me. The hard top i have weighed personally and it comes in at 188 lbs with sldier windows...p[rolly 10 lbs lighter with solid glass.

    The Blazer tub itself cannont weigh 2000 lbs.

    I swapped the rear half of a Blazer onto my truck (the entire bed portion) and me and another skinny guy had no trouble picking it up and walking it inot a cube van. Weight for the bed portion coudln't be more than 300 lbs.

    Someone else posted the half cab portion weighs about 75 lbs. Doors are about 80 lbs each, tailgate about 120.

    Now we're left with the front floor and firewall and I don't see that weighing more than 200 lbs.

    Front clip:

    Hood ~75 lbs
    fenders ~ 25 lbs x 2
    core support ~ 50 lbs.

    My best guess is 1030 lbs for the body itself.

    I'm with Greg...just happy if it doesn't get heavier than it already is.

    Rene
     
  9. yunit

    yunit 1/2 ton status

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Actually when I use the term "Blazer Tub", I mean the entire K5 shell with the complete interior.

    I think that it is going to be a better idea to just buy a tow rig and heavier trailer.
     
  10. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    4000 or 5000 isn't going to be that much difference in towing. Add in 1500 or so for a trailer and gear (if your lucky) and your dealing with 5500 or 6500, not worth the effort as far as towing goes. Either one will be a pig towing without a diesel (or healthy BBC).
     
  11. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Well, the 'guts' aren't going to weigh more than 400 lbs...

    I'd love to see Russ scale his truck, with no body to speak of I'd guees it's still a heavy pig.../forums/images/graemlins/smile.gif

    Rene
     
  12. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Yeah, I need to get that done. My guess is your right! /forums/images/graemlins/eek.gif /forums/images/graemlins/laugh.gif
     
  13. Stephen

    Stephen 1/2 ton status Moderator Vendor

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Mine runs about 5200# without me in it, with full fuel and minimal gear. It could be built a lot lighter if that was my plan from the first but it wasn't so it's heavy.

    My bro's tube chassis comes in around 4000-4200# depending on how you weigh it, with the 350/350/doubler/D60/14B drivetrain. It does have a link and coilover suspension that's heavier than most leaf setups.

    I really don't think you can take a full body K5 on the trail with 1-ton drivetrain and big (40"+) tires under about 5500#. If you do you're going to be trading something off, drivetrain strength (your 241 chain isn't bulletproof), chassis strength, body protection, etc.

    If you want light, ditch the whole body and build a buggy on the frame, or maybe put a S-truck on it, but those aren't even that light.
     
  14. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    [ QUOTE ]
    If you want light, ditch the whole body and build a buggy on the frame

    [/ QUOTE ]
    Just curious, what does Beck's weigh?
     
  15. Stephen

    Stephen 1/2 ton status Moderator Vendor

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    about 4300#

    This is with the HEAVY steel beadlocks, 42's, Doubler, D60F, etc. I think it was about 3700-3800 with the 208, D44 and 36's.
     
  16. yunit

    yunit 1/2 ton status

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Any pics of beck's rig?
     
  17. Sandman

    Sandman 3/4 ton status Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    [​IMG]
     
  18. jac6695

    jac6695 1/2 ton status

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    [ QUOTE ]
    the HEAVY steel beadlocks

    [/ QUOTE ]

    Hey, easy on the steel beadlock criticisms. /forums/images/graemlins/rotfl.gif They are cheap (thanks to you) and the plates are light enough to check on Northwest. /forums/images/graemlins/wink.gif Just make sure to keep the bolts tight. /forums/images/graemlins/thumb.gif
     
  19. supersize75

    supersize75 1/2 ton status

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    moved to towing forum, now go tlk about 4 linking your toilet for those violent times during the holidays. /forums/images/graemlins/rotfl.gif
     
  20. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Re: Since this is the Center of Gravity...let\'s get some vehicle weight\'s.

    Hey guys, lets keep this on topic. This is not really the place to talk about towing in general, there is a forum for that too. This thread is kinda marginal anyway based on forum guidelines, but I figure modifications to save weight, affecting the CoG, and understanding give and take with weight of specific components makes me think it belongs. At least for now...
     

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