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14 bolt FF van axle--I know its been covered but...

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 88K5Jimmy, Apr 15, 2002.

  1. 88K5Jimmy

    88K5Jimmy 1/2 ton status

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    I tried searching for about an hour and couldn't completey get all my questions answered.

    This is what I know:

    They are wider, about the same width as the front.
    They spring perches and shock mounts have to be moved.

    This is what I don't know:

    What kind of problems/issues would the extra width make?
    Can you fit a 15" wheel?
    If so, what is the most backspacing you can get?
    If you put disk brakes on them will that solve the 15" wheel dilema?
    Is there a different hyrbid u-joint?
    Are gears readily available, like a truck 14FF?
    Can you convert it to 6-lug like others have done?-I thought the center hubs were to big to fit through a stock steel rally wheel?
    And generally is there any good info/advice I should know?

    I appreciate all the info.
    Thanks
    Ross
     
  2. Hossbaby50

    Hossbaby50 3/4 ton status

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    1. The extra width might make your turning radius alittle bigger.
    2. 15" rims (steel) will fit with any backspacing, with or without disc brakes.
    3. Same hybrid joint
    4. Same gears and lockers as trucks, longer axleshafts.
    5. You can make it 6 lug. No 6 lug 14FF will fit on stock rally's.

    Someone let me know if I am wrong. Thanks
     
  3. Triaged

    Triaged 1/2 ton status

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    All the parts catalogs list the same part # for the truck and van axle shafts...They might be the same. That would mean that c&c, truck, and van 14FF's all use the same shafts and just different hubs? Would be nice to find out for sure...it would be cheeper to put van hubs on then buy wheel spacers.
     
  4. RGF

    RGF 1/2 ton status

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    The van axleshafts are longer than the pick-up shafts by exactly 1 1/2" each, the van WM to WM will be 70" and the pick-up is 67".
    The pick-up and C&C 14FF use the same lenght axleshafts but the difference in WM width on the C&C (63") comes from the off-set on the bearing hubs.
    You will have to swap in the van 14 to get the wide track but all the 14bolt stuff is the same except for those shafts.

    RGF
     
  5. Mudstud

    Mudstud 1/2 ton status

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    WM = Wheel Mounting Surface right??
    What is C&C?
     
  6. Charly

    Charly Registered Member

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    yep WM =wheel mounting surface (commonly known as WMS too).

    The C & C means cab and chassis, as in a vehicle with dual wheels purchased justa as a cab and chassis, often fitted with utility bodies, wrecker bodies etc.

    The WMS to WMS measurement on the C & C are 63", but the shafts are the same as the full width P'Up models, as RFG pointed out.

    Hey RFG....how's it going?

    Charly
     

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