Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

how to tell if they are 4.10??

Discussion in 'The Garage' started by 85mudblazin, Jul 7, 2004.

  1. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    I am wanting to get a 14bff and I need to know how to tell if it has 4.10 gears.
    Thanks-
    -Chris
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

    Joined:
    Jul 22, 2001
    Posts:
    16,217
    Likes Received:
    1
    Location:
    Mesa , Arizona USA
    When you pull the cover to inspect it PRIOR to purchasing it , on the side of the ring gear are numbers , get those and you can tell what gears are in there. Usually it is something like 41 and 10 , I.E 41 divided by 10 /forums/images/graemlins/k5.gif
     
  3. FWP

    FWP CRS

    Joined:
    Oct 11, 2000
    Posts:
    3,845
    Likes Received:
    3
    Location:
    Prescott Valley, AZ
    An alternative method to what Paul suggested:

    Hold one wheel still. Rotate the free wheel 1 rotation, and count the number of turns the pinion yoke makes. Generally it will be some standard gearset like 3.73 or 4.10
     
  4. chevy_addict

    chevy_addict 1/2 ton status

    Joined:
    May 4, 2004
    Posts:
    138
    Likes Received:
    0
    Location:
    You are here, I am not
    [ QUOTE ]
    Hold one wheel still. Rotate the free wheel 1 rotation, and count the number of turns the pinion yoke makes. Generally it will be some standard gearset like 3.73 or 4.10

    [/ QUOTE ]

    Silly newbie question: why hold one wheel still? /forums/images/graemlins/confused.gif

    Dave
     
  5. pauly383

    pauly383 Daddy383 Staff Member Moderator

    Joined:
    Jul 22, 2001
    Posts:
    16,217
    Likes Received:
    1
    Location:
    Mesa , Arizona USA
    [ QUOTE ]
    Silly newbie question: why hold one wheel still?

    [/ QUOTE ]

    If its not a real locker or welded, the other tire differentiates and the driveshaft won't turn /forums/images/graemlins/k5.gif
     
  6. chevy_addict

    chevy_addict 1/2 ton status

    Joined:
    May 4, 2004
    Posts:
    138
    Likes Received:
    0
    Location:
    You are here, I am not
    [ QUOTE ]
    If its not a real locker or welded, the other tire differentiates and the driveshaft won't turn /forums/images/graemlins/k5.gif

    [/ QUOTE ]

    What if both wheels are raised and the driveshaft is turned by hand, will the results be the same as one wheel held still? Or will it be half? I tried both wheels raised on my 14bff and came up with a stupid number: about 2.25 driveshaft revolutions for 1 tire revolution.

    Dave
     
  7. mrk5

    mrk5 The Sticker Guy Moderator Vendor GMOTM Winner Author

    Joined:
    Apr 20, 2004
    Posts:
    12,331
    Likes Received:
    1,039
    Location:
    Northern Colorado
    Double it for one tire rotation. Does 4.56 sound right?
     
  8. chevy_addict

    chevy_addict 1/2 ton status

    Joined:
    May 4, 2004
    Posts:
    138
    Likes Received:
    0
    Location:
    You are here, I am not
    [ QUOTE ]
    Double it for one tire rotation. Does 4.56 sound right?

    [/ QUOTE ]

    4.56 makes a lot more sense than 2.25 /forums/images/graemlins/smile.gif

    Dave
     
  9. POWERMAD

    POWERMAD 1/2 ton status

    Joined:
    Mar 4, 2001
    Posts:
    3,466
    Likes Received:
    0
    Location:
    Oregon
    If the wheel can be turned with only one wheel raised then you rotate the tire 2 times.
    If it is a spool or welded and both wheels have to be raised in order to turn it then it is only one revolution of the wheel.
     

Share This Page