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Thread: Front brakes are dragging need your help.

  1. #1


    krs1r/t's Avatar
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    Default Front brakes are dragging need your help.

    This is making me crazy, with the calipers off, my front wheels spin free when jacked up. When I put calipers back on and pump the brakes a few times they drag pretty bad. Is this a Dakota trait? If so what is the cure. I’m losing my mind over this. I’ve literally changed everything. New everything. I did away with my hydrostatic brakes cause I thought that was the culprit. Now I have manual brakes, new master cylinder from wilwood, new lines directly to the calipers. Brand new calipers. Still doing it.

    Any insight would be appreciated.

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/4 mile #'s 10.77@125

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
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    Chris

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    niebs's Avatar
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    Default

    Manual Brakes? Disk/drum setup? What caliper and master bore size? Do you have any residual valves in place? Proportional valves? Remove Abs block?

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    Quote Originally Posted by niebs View Post
    Manual Brakes? Disk/drum setup? What caliper and master bore size? Do you have any residual valves in place? Proportional valves? Remove Abs block?
    Stock 4 wheel disk brakes, manual brakes. 1” bore master cylinder
    No abs
    Proportioning valve came with new wilwood master cylinder
    No residual valves

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/4 mile #'s 10.77@125

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
    "If you like me good, if you hate me, even better!"
    Chris

  4. #4

    Default

    You have sufficient pressure to apply the brakes but insufficient pressure to release the pads: 1. so slide pins are lubed and not sticking? 2. Any twists or kinks in the lines? 3. Any brake pedal adjustments made ? 4.You have a slight space between push rod and master cylinder? 5. Pedal not adjusted too tight to cause brake port blockage? 6. Pin boots not grabbing or inserted ok?

    This same thing happened to me on an 03 Durango. New everything and they still grabbed. I took off the calipers and polished out the pin slot and did the same to the pins. Lubed them up and put them back and no more dragging and this was all new shit!

    I think some aftermarket pieces may have different tolerances.

  5. #5


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    Everything checks out you mentioned
    I’ll try and polish out pins and slots.

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/4 mile #'s 10.77@125

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
    "If you like me good, if you hate me, even better!"
    Chris

  6. #6

    Default

    Quote Originally Posted by krs1r/t View Post
    Everything checks out you mentioned
    I’ll try and polish out pins and slots.
    Well if that doesn't straighten them out then you have insufficient pressure to get the pads released. Something is either blocking the lines from flowing properly or your new master cylinder is faulty..
    I'd put an air hose to blow out the lines next if you spot no kinks or twists.

    Oh and I forgot and please don't get offended but the master cylinder is not overfilled right?

  7. #7


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    I just ran all new lines everything is new no kinks
    Master cylinder is not over full either

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/4 mile #'s 10.77@125

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
    "If you like me good, if you hate me, even better!"
    Chris

  8. #8


    krs1r/t's Avatar
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    I just ran all new lines everything is new no kinks
    Master cylinder is not over full either

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/4 mile #'s 10.77@125

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
    "If you like me good, if you hate me, even better!"
    Chris

  9. #9
    niebs's Avatar
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    Default

    Was this any issue with all original parts?

  10. #10


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    Quote Originally Posted by niebs View Post
    Was this any issue with all original parts?
    Yes it was
    That is why I asked the question here to see if others had problems/insight

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/4 mile #'s 10.77@125

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
    "If you like me good, if you hate me, even better!"
    Chris

  11. #11


    krs1r/t's Avatar
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    Quote Originally Posted by niebs View Post
    Was this any issue with all original parts?
    Just wanted to thank you. I do believe taking a few thousands off the pins worked, they were seizing up only when you tighten up the caliper bolts.

    Bad Luck Truck
    Current setup
    „R„block 429ci W5 heads 700hp N/A
    1/4 mile #'s 10.77@125

    Old 1/4 numbers below with 408
    Fastest N/A 2010,2011,2014
    477-RWHP ?-RWTQ

    11.244 ET @ 119.71mph N/A
    FOXHOLE RACING
    "If you like me good, if you hate me, even better!"
    Chris

  12. #12
    niebs's Avatar
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    Default

    Quote Originally Posted by arro222 View Post
    This same thing happened to me on an 03 Durango. New everything and they still grabbed. I took off the calipers and polished out the pin slot and did the same to the pins. Lubed them up and put them back and no more dragging and this was all new shit!

    I think some aftermarket pieces may have different tolerances.
    Quote Originally Posted by krs1r/t View Post
    Just wanted to thank you. I do believe taking a few thousands off the pins worked, they were seizing up only when you tighten up the caliper bolts.

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