JLT Rock Blockers (2020-2021 GT500)


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JLT Rock Blockers (2020-2021 GT500)

ROCK BLOCKER!!!! One of the very first things that was noticed after being around a few new GT500's was the rocks the side skirts collected under normal driving. We spent countless sleepless nights thinking of a solution for this MAJOR problem. After a Monday night of no sleep, we got it!

We designed these foam inserts that simply tuck into the open area of the side skirt to keep this area clean of road debris. These have been tested to 225 MPH on a stationary dyno :-D. We would recommend removing them for track days and extended high speed driving. They have been road tested to 100+ MPH, on a closed course. Do not attempt!

What's included: (2) JLT Rock blockers. Peace of mind and ability to sleep at night knowing rocks are not on your side skirts.

12 Reviews

  • 5
    Rock Blockers for 2021 GT500

    Posted by Deidre Taylor on Oct 4th 2021

    Easy to install and they work as described. It's nice to not have small rocks/pebbles flying thru the opening. Thanks for this product. It works perfectly!

  • 4
    JLT Rock Blockers

    Posted by Gary on Feb 26th 2021

    I would have rated them five stars if they would fit more tightly. They seem to move around the space that they fit into so I have to use some glue to hold them in.

  • 5
    Rock blocker

    Posted by Robert Parks on Feb 8th 2021

    Fits great, works great

  • 5
    Rock Blockers

    Posted by David Craft on Dec 23rd 2020

    This easy to install accessory really works. They are excellent keeping 100% of the debris from coming in on the running boards. Cheap, efficient, easy to install.

  • 5
    JLT Rock Blockers

    Posted by Dave Craft on Nov 25th 2020

    Simple design that work great

  • 5
    Great fit and finish

    Posted by L J Cor on Sep 21st 2020

    Received the rock blockers this weekend. Fit and finish are really good. def recommend it. I also would suggest JLT to create some front mud flaps that would look and fit commensurate with cars line as an additional item to install.

  • 5
    perfect fitment

    Posted by Billy on Jun 10th 2020

    Simple, inexpensive, effective. Every GT500 owner needs this part

  • 5
    gt 500 rock blockers

    Posted by Dennis Alverson on May 28th 2020

    Very easy to install and stops all the problems with rocks

  • 5
    JLT ROCK BLOCKERS (2020 GT500)

    Posted by Gary Fisher on May 22nd 2020

    Fits well in opening and blocks rocks.

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