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u bolt and spring plate q's

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by dheavychevy38, Jun 25, 2004.

  1. dheavychevy38

    dheavychevy38 1/2 ton status Premium Member

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    u bolt and spring plate q\'s

    can any one help me i forgot /forums/images/graemlins/confused.gif to measure my dana 60 and 14 bolt so i could get my u bolts dose anyone know what the tube sizes are they are from a 85 dump truck chevy

    does any one have dimensions so i can make spring plates

    any help would kick a$$ thanks guys /forums/images/graemlins/waytogo.gif
     
  2. dodgedude99

    dodgedude99 1/2 ton status

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    Re: u bolt and spring plate q\'s

    i dont know about the 60, but the 14bolt is 3.5", i just had some made today.
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: u bolt and spring plate q\'s

    3 3/8" for the 14 bolt, not 3 1/2". 8" or so long for a regular spring pack plus whatever is required for blocks if you have them.

    Front D60 will use two 5/8" studs and nuts, two 3 1/4" by 8-9" u bolts and one 4" by 10".

    Use 5/8" stock to have them made.
     
  4. dheavychevy38

    dheavychevy38 1/2 ton status Premium Member

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    Re: u bolt and spring plate q\'s

    sweet you guys are awsome /forums/images/graemlins/rotfl.gifthanks thah helps alot
    for the studs can they be grade 8 bolts or do they have to be studs

    now to make some plates /forums/images/graemlins/thinking.gif
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: u bolt and spring plate q\'s

    I used grade 8 bolts, but most people prefer studs.

    I'm going to replace them with studs as soon as I can find an economical source for them.

    Bolts/studs will have to be 3" long or so for springs, mine are 4" because of the zero rates.
     
  6. dodgedude99

    dodgedude99 1/2 ton status

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    Re: u bolt and spring plate q\'s

    [ QUOTE ]
    3 3/8" for the 14 bolt, not 3 1/2". 8" or so long for a regular spring pack plus whatever is required for blocks if you have them.

    Front D60 will use two 5/8" studs and nuts, two 3 1/4" by 8-9" u bolts and one 4" by 10".

    Use 5/8" stock to have them made.

    [/ QUOTE ]

    sorry, i meant u bolt diameter was 3.5".
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: u bolt and spring plate q\'s

    The correct u bolt diameter is not 3.5. It is 3 3/8". You can probably push the 3 1/2" ones close enough together to get them to go into the spring plate, but the correct size is 3 3/8" to fit the way it is supposed to.
     
  8. ugly_blazer

    ugly_blazer 1/2 ton status

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    Re: u bolt and spring plate q\'s

    I looked at the sticker on the u-bolts that a local 4x4 shop here gave me and it says 3 5/8" /forums/images/graemlins/dunno.gif They don't appear to fit very tight around the axle housing, 3 3/8" would have worked better, but they were still easy to get into the spring plates.
     
  9. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: u bolt and spring plate q\'s

    A 5/8" wrench will fit on a bolt with a 9/16" head too, that doesn't mean that it will work correctly.

    3 3/8" is the correct size.
     
  10. dodgedude99

    dodgedude99 1/2 ton status

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    Re: u bolt and spring plate q\'s

    [ QUOTE ]
    A 5/8" wrench will fit on a bolt with a 9/16" head too, that doesn't mean that it will work correctly.

    3 3/8" is the correct size.

    [/ QUOTE ]
    wow thats funny, the oem bolts i had taken off were, hmm, 3.5, i guess chevy got it wrong then also. along with the lift kit company, and the local spring shop.
     
  11. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: u bolt and spring plate q\'s

    I guess the lift kit manufacturers send you the wrong size u bolts with their kits and I can't read a measuring tape.

    Either way, like I said, 3 1/2" is close enough.
     
  12. ugly_blazer

    ugly_blazer 1/2 ton status

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    Re: u bolt and spring plate q\'s

    [ QUOTE ]
    A 5/8" wrench will fit on a bolt with a 9/16" head too, that doesn't mean that it will work correctly.

    3 3/8" is the correct size.

    [/ QUOTE ]

    I know mine are wrong, they don't stay close to the tubes, they only touch on the bottom. It makes me /forums/images/graemlins/angryfire.gif that they charged me $45.00 for the wrong stuff.
     

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