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Description
Fabtech 11-19 GM 3500HD 2WD/4WD 6in Rts Sys w/Dlss ShksFabtechs cutting edge RTS(TM) system has now been developed for the all new GM HD platform. The 6 RTS(TM) utilizes a patent pending bracket system that keep the torsion bars raised up, in the stock location. This feature provides superior ground clearance at the frame as there are no torsion bars hanging down to become high centered on or damaged when offroading.. The 6 RTS(TM) system has been designed with unitized bracketry to retain the four front
Fabtechs cutting edge RTS(TM) system has now been developed for the all new GM HD platform. The 6 RTS(TM) utilizes a patent pending bracket system that keep the torsion bars raised up, in the stock location. This feature provides superior ground clearance at the frame as there are no torsion bars hanging down to become high centered on or damaged when offroading.. The 6 RTS(TM) system has been designed with unitized bracketry to retain the four front compression stops of the vehicle as GM intended. This distributes impact loads across a wide section of the frame rather than at a single point.High arched crossmembers and front differential skid plate are constructed of 1/4 thick steel to resist bending from hard front suspension impacts. Only 1/4 thick steel provides the rigidity and strength necessary to relocate the torsion bars, bump stops and lower control arms properly. Minimal heavy duty bracketry allow for a fast installation time with only two holes to drill and no cutting of the front diff housing. The 6 RTS(TM) system allows the use of both 18 and 20 diameter wheels.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2018 | Chevrolet | Silverado 2500 HD | High Country |
| 2014-2018 | Chevrolet | Silverado 2500 HD | LT |
| 2014-2018 | Chevrolet | Silverado 2500 HD | LTZ |
| 2014-2018 | Chevrolet | Silverado 2500 HD | WT |
| 2015-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2015-2018 | GMC | Sierra 2500 HD | Base |
| 2014-2018 | GMC | Sierra 2500 HD | Denali |
| 2014-2018 | GMC | Sierra 2500 HD | SLE |
| 2014-2018 | GMC | Sierra 2500 HD | SLT |
| 2014 | GMC | Sierra 2500 HD | WT |
| 2015-2018 | GMC | Sierra 3500 HD | Base |
| 2011-2018 | GMC | Sierra 3500 HD | Denali |
| 2011-2018 | GMC | Sierra 3500 HD | SLE |
| 2011-2018 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
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4.7 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Perfect for roof LED light bar
Color: 14AWG-1 Lead
This worked great for wiring a 50" LED light bar to the roof of my SUV. This kit conveniently includes a relay, switch with backlight, and fuses.
I used a step bit to drill the pilot hole for the switch and worked my way up until it was the right size. I zip tied the excess wire and it made for a clean install. My only complaint is that the ring terminals were too large for the battery but it was easy to crimp smaller ones on.
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Reviewed in the United States on June 13, 2022
★★★★★ 4
Good harness
Color: 14AWG-1 Lead, Color: 14AWG-1 Lead
I bought this for the nilight 12in bar. It came in the same box and right on time. It easily connected to the light bar and into the engine. There is a lot of slack between the battery terminals and the bar, but it’s understandable if maybe you wanted to mount this on the back of your vehicle. I wish there was more slack between the relay and the switch, as having to go from the battery through the firewall and into the cabin requires sufficient length. I ended up getting rid of the circular switch that came with it and it’s complimentary connectors to replace it with my own rectangular rocket switch that fit better in the cabin. Overall good product. I’d advise to wrap electrical tape around the quick disconnect to prevent any weather wear.
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Reviewed in the United States on August 19, 2020
★★★★★ 5
Good
Color: 14AWG-1 Lead
I have used nilight products for years now and they are good for the price.
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Reviewed in the United States on October 12, 2025
★★★★★ 5
Way better and less expensive than building your own harness
Color: 14AWG-1 Lead
Went with a different switch but there’s no way I would ever do a led light install again without one of these. This makes it so much easier and straight forward than building your own harness. There’s quite a bit of extra wire when installing on an utv, but who cares?! For the price of all that comes with, you still save about $20! Besides, they’re universal and work for many vehicles including cars and trucks.
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Reviewed in the United States on March 13, 2021
★★★★★ 5
Used for a radiator fan manual on/off
Color: 14AWG-1 Lead
I used this to wire up my radiator fan on my 2000 Jeep Grand Cherokee 4.0. So far it seems alright. I have bought other kits and this kit came with just the right length of wiring, + I didn't need 2 sets of outputs like the other versions. The switch is a little cheap without feedback but for 10 bucks you aren't going to do any better making your own harness. I'm honestly surprised it powers the fan. These kits are insanely useful and from someone who has wired up lightbars, etc from scratch, just ease your troubles with this. By the time you pay for the neccessary components you will have spent more than this kit.
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Reviewed in the United States on January 6, 2020