Is this hard to install?

It works wonderfully. I installed it in a 2008 GMC Acadia and yes it was hard to install. I am not sure I want to do it again. I'm pretty handy as an aircraft mechanic but I felt the set up was unusually tedious to install. Lots of wiring to do and the air actuator took a bit of figuring where I could mount it. It took me 3 evenings to install it.

Is the braking proportional? I have a trailer brake controller on my motor home. Will it work with that?

please go to this link,http://roadmasterinc.com/pdf/25-5040-00.pdf,it will explain a lot.it is not however truly proportional,and does not work with your brake controller.you set the max level of braking and when applying the MH brakes,it will ramp up to the preset levelhope that explain things,theo

I dont see how it works if it doesnt hook to the brake pedal can it really activate the master cylinder to engage the brakes or is it for electric b

There is a cable that runs from the Invisibrake box mounted in the tow vehicle. The cable runs under the carpet and attached with a pulley system to the back of the pedal. When the brake lights on the coach come on, the box pulls the cable thus activating the brakes. Please feel free to call us if you have any technical, install, or questions. Thank you,The Hitch Spot602-321-1703

If you're asking if it will work on a 2003 Wrangler, I would think so. Mine is installed on a 2002 Explorer. I have flat towed it over 2,000 miles with no problems. I absolutely love it.

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8700 Invisibrake Support Braking System with Emergency Breakaway System fits Towed Vehicles with Vacuum-Powered Brakes | 5-100 PSI Brake Pressure | Made in the USA

Product ID: 21117620

Details

Automotive Fit Type
Universal Fit
Brand
Roadmaster
Global Trade Identification Number
Manufacturer
Roadmaster
UPC
758306313118

📏Compact 8"x8"x2" stealth design

🔋Battery trickle-charge during towing

⚙️5-100 PSI adjustable brake pressure

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Description

🚐 Stop Smart, Tow Confident: The Invisible Brake That Works As Hard As You Do

BATTERY FRIENDLY TECH - Connects directly to your tow vehicle’s battery and trickle-charges to prevent drain during long hauls.
INVISIBLE INSTALLATION - Ultra-compact design fits discreetly under seats or panels—no space sacrificed, no clutter visible.
POWER BRAKING ON THE GO - Energizes your towed vehicle’s vacuum-powered brakes for consistent, reliable stopping power.
PLUG PLAY PEACE OF MIND - Fully automatic system activates with your motorhome’s brake lights—no switches, no hassle, just tow and go.
MADE IN THE USA BUILT TO LAST - Handcrafted American quality ensures durability and compliance with US & Canadian braking standards.

The Roadmaster 8700 InvisiBrake is a compact, fully automatic supplemental braking system designed for towed vehicles with vacuum-powered brakes. It delivers adjustable braking pressure from 5 to 100 PSI, energizes power brakes for consistent stopping, and connects directly to the towed vehicle’s battery to trickle-charge during towing. Its stealthy 8"x8"x2" size allows for hidden installation without sacrificing space. Made in the USA, it meets all US and Canadian braking requirements, providing a reliable, plug-and-play solution that activates seamlessly with your motorhome’s brake lights.

Specifications

ASIN	B007HRTFIW
Automotive Fit Type	Universal Fit
Best Sellers Rank	#847,846 in Automotive ( See Top 100 in Automotive ) #324 in Trailer Brake Controls
Brand Name	Roadmaster
Customer Reviews	4.4 4.4 out of 5 stars (247)
Global Trade Identification Number	00758306313118
Included Components	Roadmaster 8700 InvisiBrake Hidden Brake System
Item Type Name	Roadmaster 8700 InvisiBrake Hidden Brake System
Item Weight	15.6 pounds
Manufacturer	Roadmaster
Manufacturer Part Number	8700
Manufacturer Warranty Description	Limited Lifetime
Model Number	8700
Number of Items	1
Orientation	Rear
UPC	758306313118

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฿165933

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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