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how is my first gear pattern on my 14bff? Need ideas FAST

Discussion in 'The Garage' started by fortcollinsram, Jul 15, 2004.

  1. fortcollinsram

    fortcollinsram 1/2 ton status

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    I fiannly installed my gears tonight and will be putting hte axle back in tomorrow. Tell me what you all think of the pattern before I button her up tomoorw and take it for a drive...

    [​IMG]


    The back-lash is dead-nutz at .008" (what is called for by the Precision Gear set I used)

    Thanks,


    Chris
     
  2. TONYP

    TONYP 1/2 ton status

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    thanks for the post...I need to get my ars in gear and do mine, maybe I'll do it this weekend. And i need to know the same thing your asking... /forums/images/graemlins/whistling.gif
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Lets see the other side too.

    If it looks like that, I'd say it's damn near perfect!!
     
  4. MTBLAZER89

    MTBLAZER89 3/4 ton status Premium Member GMOTM Winner

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    Need a pic of the coast side too, but guessing I think the pinion is too close. Don't move it on my word though /forums/images/graemlins/histerical.gif /forums/images/graemlins/whistling.gif
     
  5. fortcollinsram

    fortcollinsram 1/2 ton status

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    Here is the coast side. I am not sure why it is not as good of a pattern as the drive side but...? I am going to run by work tomorrow and use a mic to figure out the thickness of the diff. pinion shims. Tonight I got to where I am now by "feeling" for the thicker or thinner shims...not the most precise method by a long shot. Also, when I ran the coast-side pattern, my helper (AKA: Drunken Friend) couldn't get a grip on the ring gear as well so there wasn't as much force to create the pattern....
    '

    Still, what are your ideas?

    [​IMG]

    Chris
     
  6. 84gmcjimmy

    84gmcjimmy 1 ton status

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    What does the yellow stuff do?
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

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    That looks perfect to me.
     
  8. fortcollinsram

    fortcollinsram 1/2 ton status

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    [ QUOTE ]
    What does the yellow stuff do?

    [/ QUOTE ]

    It is gear marking compound....it allows you to SEE what the contact pattern is between the pinion and ring gears...

    Chris
     
  9. 84gmcjimmy

    84gmcjimmy 1 ton status

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    ooh ic. one day I will understand all this lingo /forums/images/graemlins/woot.gif
     
  10. 84gmcjimmy

    84gmcjimmy 1 ton status

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    I don;t mean to hijack but, how do you figure out what the backlash is?
     
  11. 84_Chevy_K10

    84_Chevy_K10 Banned

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    You use a dial indicator. You, "rock" the ring gear until it contacts one surface of the pinion. Then you set it to zero and "rock" the ring gear until it hits the pinion the other way to see how much play there is between the gears. Hard to explain on here.
     
  12. 84gmcjimmy

    84gmcjimmy 1 ton status

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    Okay I understand now, I forgot about the dial indicator... /forums/images/graemlins/doah.gif
     
  13. fortcollinsram

    fortcollinsram 1/2 ton status

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    [ QUOTE ]
    I don;t mean to hijack but, how do you figure out what the backlash is?

    [/ QUOTE ]


    You need a dial indicator. Back-lash is the amount of free-play between the ring and pinion. You can increase backlash by moving the ring farther away from the pinion and vice versa. To determine what you back-lash is, you need to set a dial indicator up on the axle housing with the dial's "arm" up agains one of the teeth on the ring gear. You then pull the ring gear back a little and zero the indicator and then lightly push the ring gear in the opposite direction until you feel it mate up again with the pinion...That amount of free play is the back lash, which in my case was .008"

    Chris
     
  14. fortcollinsram

    fortcollinsram 1/2 ton status

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    dude I am slow tonight...I need to go to bed...


    /forums/images/graemlins/screwy.gif /forums/images/graemlins/screwy.gif

    Chris
     

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