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spring size differences

Discussion in 'The Garage' started by big_truxx, Dec 26, 2004.

  1. big_truxx

    big_truxx 1/2 ton status

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    whats the difference between 1/2 3/4 and 1 on springs both front and rear? are 1/2 & 3/4 52" rear and ton 56"? and is the front 48" on both the 1/2 and 3/4 and the ton bigger or are they all the same on the front?
     
  2. boz42

    boz42 1/2 ton status GMOTM Winner

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    all frts are 48", rear 1/2 got 52" or 56". all 3/4 & 1 ton rears are 56" this is true on the 73-91 solid axle trucks
     
  3. rubbinz raczn

    rubbinz raczn 1/2 ton status

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    actually i think most 3/4 ton trucks got 52" rears. i have had 5 of the 73-87 year range and all had 52's. i had 2 3/4 ton suburbans and both had 56's.
     
  4. big_truxx

    big_truxx 1/2 ton status

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    sweet thanks! i love info. i spose im kinda the knowledge monster. :haha:
     
  5. dremu

    dremu Officious Thread Derailer Premium Member

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    Note that you're a special case, as crewcabs, even 3/4's, all have the 1-ton frames. At least, this was the case in the 70's, donno about your newfangled ones :D

    Easy thing, measure the spring perch spacing on your rear axle.

    -- A
     
  6. big_truxx

    big_truxx 1/2 ton status

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    i had heard that all the crew cabs did have the one ton frame. but its cool that all fronts are the same. whats the difference in the 1/2, 3/4 and ton front springs? each have a leaf more than the other?
     
  7. rubbinz raczn

    rubbinz raczn 1/2 ton status

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    i think 1 tons had 3" wide springs, front anyways. 1/2 3/4's had 2-1/2
     
  8. 84_Chevy_K10

    84_Chevy_K10 Banned

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    All of our trucks have 3" wide front springs. Aftermarket lift springs are 2 1/2".

    1/2 tons 52s or some had 56s
    3/4 tons, most 56s, some 52s
    1 tons, 56s

    Front springs can be two, three, or four leaf from the factory. My K10 originally had 3 leaf front springs because it had that listed as an option.
     
  9. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    all stock front springs are 3" wide. there are 2 leaf packs and 3 leaf packs, both can be found in 1/2 and 3/4. i think the 1 tons got 3 leaf only, haven't seen to many of those to know for sure.

    the rears are 52" and 56", 52s are found it blazers 1/2 ton trucks/burbs, some 3/4 ton trucks and some 3/4 ton burbs

    the 56" were found in all 1 tons and some 3/4 ton trucks and burbs, it depends on the GVW of that particular vehicle.

    i have seen 52" 1 ton springs made specifically for tow trucks
     
  10. rubbinz raczn

    rubbinz raczn 1/2 ton status

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    sh%t sorry!
     
  11. R72K5

    R72K5 Banned

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    84 chevy k10 has it right

    alot of 70s 10 series got 56" in the big 10 and heavy half days

    late 70s k20 alot of them were 52" rears
     
  12. k5floyd

    k5floyd 1/2 ton status

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    so where'd the 63 inchers come from?
     
  13. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    63" springs come from 88 (new body style) and newer trucks
     
  14. spoolnaround

    spoolnaround 1/2 ton status

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    Thread hijack!

    Where can I find specs on spring rates and centerpin alignment etc? I am thinking obout having some springs made for the rear. I have Ferd 57's and want something a tad stiffer and the center pin hole in the right spot without having to drill another in it.
     

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