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Thread: Went to the J8 cylinder/booster what a difference...

  1. 01-10-2021, 08:02 PM #1
    jorgelrod
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    Went to the J8 cylinder/booster what a difference...

    My brake booster was starting to whistle while braking and was super annoying. After three months waiting to get a J8 kit from Mopar the shop swapped it out and did the abs bleed, what a difference. I was used to a more spongy brake so the first time I hit the brakes, I almost had gave full of windshield, lol. I know the Dynatrac pro grips do not need it but I found it to be a worthy upgrade for when I decide to go to tons.
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  3. 01-10-2021, 09:34 PM #2
    wjtstudios
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    That’s great, congrats!


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  4. 01-10-2021, 09:43 PM #3
    JKbrick
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    Quote Originally Posted by jorgelrod View Post
    My brake booster was starting to whistle while braking and was super annoying. After three months waiting to get a J8 kit from Mopar the shop swapped it out and did the abs bleed, what a difference. I was used to a more spongy brake so the first time I hit the brakes, I almost had gave full of windshield, lol. I know the Dynatrac pro grips do not need it but I found it to be a worthy upgrade for when I decide to go to tons.
    IMG_1172.jpg


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    Is it a bolt on plug and play replacement other than the abs bleed?


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  5. 01-10-2021, 09:52 PM #4
    wjtstudios
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    Quote Originally Posted by JKbrick View Post
    Is it a bolt on plug and play replacement other than the abs bleed?


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    Yes, just a larger diaphragm and Rez on it. Other than the bleed, it’s not a terrible swap


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  6. 01-10-2021, 11:30 PM #5
    Weebz
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    I never did the ABS bleed either. Just bench bled it before install and I’ve had zero issues. Makes a world of difference
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  7. 01-10-2021, 11:37 PM #6
    cozdude
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    Quote Originally Posted by Weebz View Post
    I never did the ABS bleed either. Just bench bled it before install and I’ve had zero issues. Makes a world of difference
    You can always do an ABS bleed by causing an ABS event just FYI if you even feel like it needs it. I do this on cars after doing calipers and a master if they require it.
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  8. 01-11-2021, 12:55 AM #7
    inlikeflinn
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    Quote Originally Posted by jorgelrod View Post
    My brake booster was starting to whistle while braking and was super annoying. After three months waiting to get a J8 kit from Mopar the shop swapped it out and did the abs bleed, what a difference. I was used to a more spongy brake so the first time I hit the brakes, I almost had gave full of windshield, lol. I know the Dynatrac pro grips do not need it but I found it to be a worthy upgrade for when I decide to go to tons.
    IMG_1172.jpg


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    This for the JK? Part number?
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  9. 01-11-2021, 06:46 PM #8
    jorgelrod
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    Quote Originally Posted by JKbrick View Post
    Is it a bolt on plug and play replacement other than the abs bleed?


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    Pretty much...

    Quote Originally Posted by inlikeflinn View Post
    This for the JK? Part number?
    P5160050
    Last edited by jorgelrod; 01-11-2021 at 06:49 PM.
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  10. 01-13-2021, 03:41 AM #9
    MattAlpha
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    Quote Originally Posted by jorgelrod View Post
    Pretty much...



    P5160050
    MOPAR Online Parts lists it for $227. I’ll be picking one up when my boaster needs to be replaced.


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  11. 01-13-2021, 12:40 PM #10
    JK_0311
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    Doing some quick online searches for this, and sites are charging north of $300 for this part number but my local mopar parts store sells it for $215. Quite the markup.


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