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Water leaks from bed rail caps.

Ag3ntC00p3r

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I installed my Retrax last night. This is what I did for the stake pockets.

I removed the stake pocket covers.
Put some rubber grommets in the holes.
Put a bead of silicone on the rails that are under the covers.
Put the stake pocket covers back on.
Ran a bead of silicone around all four edges of the stake pockets.
Installed Retrax.

I have a tailgate seal kit coming next week. Hopefully all that will reduce water/dust intrusion as much as possible.
Here are pics right after a long pressure wash after the pockets were sealed and Retrax installed. Pretty good in my opinion. I just got the tailgate seal kit and will be installing it sometime this week to see if it gets better for both water and dust.

Ford Ranger Water leaks from bed rail caps. IMG_0629


Ford Ranger Water leaks from bed rail caps. IMG_0630
 

Silent Thunder

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Had some time today. Took off the bed caps. It’s like friggin Swiss cheese under there. I cleaned up and dropped a layer of Orcal 651 (whatever color I wanted to get rid of). Popped holes in the vinyl for the caps to go back on. Later siliconed those penetrations from below. Then you can put your taillights back.

We she’ll see.

IMG_2965.jpeg


IMG_2968.jpeg


IMG_2966.jpeg


IMG_2967.jpeg
What did you end up sealing the front of the bed (gap) with and how are the leaks after your mods?
 

Jeffola

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What did you end up sealing the front of the bed (gap) with and how are the leaks after your mods?
Gap was closed by a foam seal included with my tonno, honestly, its still leaks, I need to get under and seal up the penetrations from the caps with silicon.
 

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iamweasel

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For those who used silicone/caulk in the cracks of those bed caps, how is that holing up?
 

Cabose-1

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They sell bed rail caps that do not have the giant square holes on them. However, they are sold overseas. So i have no idea about exchange rates or shipping to the usa
 

Moonlit

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Mine have been doing good - Dry in the bed area. Just chasing leak up in the front of the bed in the corners (where my Tonneu cover meets the bed)
 
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Grand Nat

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I have a Lomax tonneau cover that works great but it doesn't fully cover the bed rails. I noticed leaks from the bed rail caps and the only fix I could think of was to seal around the caps with clear silicon. I think this would be the same with any tonneau cover that doesn't fully cover the bed rail caps.

Anyone else had this issue?
IMG_2992-1.jpg
This will cure that leak. LOL

Ford Ranger Water leaks from bed rail caps. Ranger roller cover
 

Rangerjimm

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I didnt like the way the silicone looked so I bought some 1" closed cell foam and cut it slightly larger and thicker than the stake pocket holes. Then put the caps back on. Seems to be working well. I also put black vinyl patches over the holes inside the bed.
Ford Ranger Water leaks from bed rail caps. 20250528_195109
 

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cforput77

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That was the main reason I got a cover that sits on the rails. Cover doesn't leak it all the holes in the bed. Thank's Ford. :facepalm:

Tonneau cover pass side view.jpg
What cover did you buy? And now that a few months have passed, are you still dry and happy with the cover?
 

CACTUSGREYFX4

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What cover did you buy? And now that a few months have passed, are you still dry and happy with the cover?
It's a Bison and yes still dry. I don't get any water from the stake pockets. The only water I get is around the tailgate. I have had it on there pretty well since I bought my truck so around 15 months.
 

BigOleOgre

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Had some time today. Took off the bed caps. It’s like friggin Swiss cheese under there. I cleaned up and dropped a layer of Orcal 651 (whatever color I wanted to get rid of). Popped holes in the vinyl for the caps to go back on. Later siliconed those penetrations from below. Then you can put your taillights back.

We she’ll see.

IMG_2965.jpeg


IMG_2968.jpeg


IMG_2966.jpeg


IMG_2967.jpeg
Thank you for this. Took my bed rail covers off today (only broke 4 clips, same 2 on each side broke perfectly flush, will be jb welding them back) and doing exactly what you described today. Vinyl the rails, pop rail covers back in, and silicon from below. Like really who tf at Ford approved this Swiss cheese design-with bed rail caps that have built-in water pass through? Blows my mind and concerns me.

Ford Ranger Water leaks from bed rail caps. 20250830_135528


Ford Ranger Water leaks from bed rail caps. 20250830_135543
 

CACTUSGREYFX4

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Thank you for this. Took my bed rail covers off today (only broke 4 clips, same 2 on each side broke perfectly flush, will be jb welding them back) and doing exactly what you described today. Vinyl the rails, pop rail covers back in, and silicon from below. Like really who tf at Ford approved this Swiss cheese design-with bed rail caps that have built-in water pass through? Blows my mind and concerns me.

20250830_135528.jpg


20250830_135543.jpg
The robots have to pick it up somehow. No holes then they would have to weld something someplace and you don't want that. :p
 
 







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