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*As of 2026, it appears that Jimmi’ Jammers are no longer being produced. Currently, the only alternative product we can find is for Ford Super Duty/Excursion. However, you may be able to find New Old Stock Jimmi’ Jammers for your model on eBay or elsewhere*
What is a Jimmi Jammer?
Redline Technical Group’s Jimmi’ Jammer is designed primarily for older trucks and SUVs and installs behind the exterior door handle to reinforce one of the most vulnerable entry points. This simple metal plate prevents thieves from prying under the handle or punching out the lock cylinder — a quiet, low-profile break-in method often used on specific vehicles, especially older GM trucks/SUVs and Ford Super Duty or Excursion models. Adding a Jimmi’ Jammer is a worthwhile upgrade if your vehicle has a compatible kit, as it will make a thief have to work harder, increase their chances of getting caught, and hopefully cause them to give up. It’s an inexpensive layer of prevention that can significantly strengthen your overall security setup.
How do they work?
The above picture depicts a common break-in method for Ford Super Duty trucks where the thieves use a screwdriver with force to bust out the lock cylinder from its plastic housing and gain somewhat discretely gain entry to the vehicle. Jimmi Jammers and similar products add a hose clamp around the plastic housing to make it more difficult for the lock cylinder to be pushed through and a metal plate that blocks access to the door and lock mechanisms that can be manipulated to open the door by jimmying with a screwdriver.
What are the limitations?
Like any theft prevention device, this should be part of a layered defense plan and not your sole security measure. If thieves cannot defeat the Jimmi Jammer, they may still choose to break a window to get into your vehicle, which is why you should pair this with an aftermarket alarm system that will go off when they initially attempt to bust through the lock, as well as an immobilizing device that will prevent your vehicle from being started. Another downside is the current lack of availability of this product for most models.
Alternative Product For 1999-2016 Ford Super Duty Trucks & 2000-2005 Ford Excursion- View on Amazon
See also:
1999-2007 Ford Super Duty Theft Prevention
1999-2007 GM Truck (GMT800) Theft Prevention
Late Model GM Truck & SUV Theft Prevention
Layered Defense for Auto Theft Prevention
