Help with Bestop Trektop NX side windows flapping in the wind - Jeep Wrangler Forum
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Old 04-05-2017, 09:26 PM
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Help with Bestop Trektop NX side windows flapping in the wind

I just installed a Bestop Trektop NX on my JKU and the darn side panels flap and balloon out when I'm driving. This happens right where the Trektop panels hit the side passenger windows.

Any ideas how to fix this?

It's annoying and I feel like the side panels should fit more snug than the way they are right now.

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Old 04-05-2017, 09:50 PM   #2
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Are the L shaped moldings folded INTO the channels? If it's like the standard soft top that needs to be a thing.
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Old 04-05-2017, 09:58 PM   #3
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That is weird, mine fit very tightly.

When I install mine I start at the top zipper (fully zip it up) and then I go to the rear window and start that zipper for a couple inches. Then I ensure that the side windows are fully seated in the grove on the plastic door surrounds, I will then finish zipping up the rear window before I installed the sides into the body tub groove.

I have done this multiple times now and my windows are solid in the wind or highway speeds.
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Old 04-09-2017, 10:59 AM
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Originally Posted by Ryans_JK View Post
That is weird, mine fit very tightly.

When I install mine I start at the top zipper (fully zip it up) and then I go to the rear window and start that zipper for a couple inches. Then I ensure that the side windows are fully seated in the grove on the plastic door surrounds, I will then finish zipping up the rear window before I installed the sides into the body tub groove.

I have done this multiple times now and my windows are solid in the wind or highway speeds.
Thanks Ryan. I'm going to try out your steps today. Hopefully it eliminates this ballooning!
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Old 04-09-2017, 11:02 AM
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Originally Posted by USMCmike View Post
Are the L shaped moldings folded INTO the channels? If it's like the standard soft top that needs to be a thing.
By L Shaped moldings, I think you mean where the side panel moldings fit into the side door panel. No, they don't really fit cleanly into the door panel. That's causing them to balloon out when i'm driving.

I'm gonna try what Ryan below suggested. If you have any other recommendations lemme know!
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Old 04-09-2017, 03:50 PM   #6
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Originally Posted by sgeezatx View Post
By L Shaped moldings, I think you mean where the side panel moldings fit into the side door panel. No, they don't really fit cleanly into the door panel. That's causing them to balloon out when i'm driving.

I'm gonna try what Ryan below suggested. If you have any other recommendations lemme know!
Yeah you need to make sure that plastic "L" sits in the slot in the door surround properly. Once you have the top zipper started, seat that tab into the door surround then use the loop at the bottom to pull the window panel down to get the lower plastic tabs under the tub. Once that's all secure the door will hold that in place. Do a dry run with the side windows completely out and loose and you'll see how that "L" sit's in the groove in the door surround, once in the window should sit nice and flush and even with your closed door.
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Old 06-19-2017, 07:59 PM
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Yeah you need to make sure that plastic "L" sits in the slot in the door surround properly. Once you have the top zipper started, seat that tab into the door surround then use the loop at the bottom to pull the window panel down to get the lower plastic tabs under the tub. Once that's all secure the door will hold that in place. Do a dry run with the side windows completely out and loose and you'll see how that "L" sit's in the groove in the door surround, once in the window should sit nice and flush and even with your closed door.
@JKSurf YEP! That was it! Thanks for the help. Those back panels are nice and snug now. Appreciate you.
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Old 06-19-2017, 08:00 PM
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Are the L shaped moldings folded INTO the channels? If it's like the standard soft top that needs to be a thing.
That was it @USMCmike ! Thanks for the help! Haven't been on the forum but this did the trick.
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Old 06-21-2017, 07:10 PM   #9
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@JKSurf YEP! That was it! Thanks for the help. Those back panels are nice and snug now. Appreciate you.
Nice! Glad you got it sorted out.

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