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Description
2019-2024 GM 1500 3.5" Lift Kit with FOX 2.5 Performance Elite Shocks (BDS755FDSC)Up the ante in your Silverado Sierra 1500 with this BDS 3. 5" lift kit featuring FOX Performance Elite 2. 5 coil over shocks, with clearance for up to 35" tires (Chevy) or 33" tires (GMC). Up front it includes FOX 2. 5 Performance Elite remote reservoir coil over shocks and heavy duty tubular upper control arms (1. 5" OD x . 120 wall with indexed ball joint cup and greaseable ball joints) for increased strength. The rear uses fabricated steel lift
Up the ante in your Silverado/Sierra 1500 with this BDS 3.5" lift kit featuring FOX Performance Elite 2.5 coil-over shocks, with clearance for up to 35" tires (Chevy) or 33" tires (GMC). Up front it includes FOX 2.5 Performance Elite remote reservoir coil-over shocks and heavy duty tubular upper control arms (1.5" OD x .120-wall with indexed ball joint cup and greaseable ball joints) for increased strength. The rear uses fabricated steel lift blocks, longer u-bolts, and a set of FOX 2.0 Performance shocks.
The FOX 2.5 Performance Elite shocks bolt on ready to run, with a remote reservoir for extra fluid capacity to keep them cool in rough terrain. The Dual Speed Compression Adjust adjuster offers 10 low-speed and 12 high-speed compression levels with a black anodized aluminum reservoir for cooling.
Features
- FOX 2.5 Performance Elite coil-overs offer improved damper performance over stock
- Dual Speed Compression Adjust adjuster allows easy high-speed and low-speed compression tuning for optimal performance in any terrain
- Performance UCAs increase strength and allow for more suspension travel
- FOX 2.0 performance series IFP rear shocks included
- Factory Protection Plus drivetrain warranty included
- Easy, 100 percent bolt on installation
Specs
- Front Lift Method: Coil-Over
- Rear Lift Method: Block
- Shocks Included: Yes
- Front Lift Height: 3.5 inch
- Rear Lift Height: 2.5 inch
Recommended Tire & Wheel Fitment
- Tire Size: 35x12.5
- Wheel Diameter: 20x9
- Back Spacing: 5.5
Notes
- 5.5 inch max wheel backspacing can be used.
- Will fit Trail Boss/AT4 models, however will net 1.5 inch of lift over factory ride height.
- All aftermarket wheels should be test fit prior to mounting the tire to ensure proper clearance to the brake caliper. Some wheel profiles will not clear the brake caliper. These can be test fitted before the vehicle is lifted in a stock condition.
- Will NOT fit models with a single leaf spring (monoleaf) rear suspension.
- Will not fit models equipped with ARC.
- 2.7L Turbo models use Diesel kit for proper skid plate fitment.
Includes
- BDS011350, 2019-2024 Chevrolet Silverado/GMC Sierra 1500 Coilover 3.5 inch Box Kit (UPC 658848611775)
- FOX88306162, Kit: 2019-2024 GM 1500, w/UCA, Front Coilover, 2.5 Series, AL, R/R, 6.0 inch, Non-TB/Non-AT4 3.5 inch Lift, TB/AT4 1.5 inch Lift (UPC 711745603943)
- FOX88326087, 2019-2024 GM 1500, Rear, 2.5 Truck Fox Performance Elite Series, R/R, 10.5 inch, Non-TB/Non-AT4 2.5-4 inch Lift, TB/AT4 0-2 inch Lift, Dual Speed Compression Adjust (UPC 711745591349)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Made a big improvement in cabin noise—highly recommend
Model: SLH20025
Siless Hybrid made a huge difference in reducing noise in the floor of my truck cabin. In some areas, there was basically just bare sheet metal between the inside and outside, so adding this really helped the truck feel more solid and noticeably quieter on the road.
I used Kilmat on the doors, and honestly I wish I had used Siless Hybrid there too, but it was too late by the time I realized the difference. This material is very sticky, easy to cut, and simple to apply, which made the install pretty smooth.
Just a heads-up: the tacky side gets messy and will bond to clothing really easily, so be careful during installation. Overall, I’d definitely buy it again—great product with real results.
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Reviewed in the United States on December 2, 2025
★★★★★ 5
Very good product at a fair price
Model: SLH20025
Very good sound deadener and heat shield, it is a bit sticky to work with, but easy to shape and cut
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Reviewed in the United States on April 19, 2026
★★★★★ 5
I wish I had Siless 20 years ago!!!
Model: SLH20025, Model: SLH20025
I have installed all kinds of insulation in vehicles over many years. I only needed to purchase 2 boxes to complete the entire interior siding of my 2025 chevy express, what a great value! I wanted to insulate my locksmith van for sound and heat. The sound reduction virtually eliminated the road noise. These panels also look amazing. It got up to 110F in the sun with the doors closed. After adding Siless insulation the temperature maxed out at 97F. That is a massive difference. Plus, I didn't even finish with the roof before testing. Siless Hybrid 3in1 was extremely easy to cut and adhere onto metal panels. I'm impressed with the quality of the individual panels and the adhesive is not toxic smelling compared to some others. My favorite thing about these panels is you can actually take them off and readjust them before they finally stick and they do not leave any black residue behind when you pull them up to adjust them. All I needed was a heat gun, knife and a roller to complete this job. The size of each panel is perfect, you can handle them with ease. I probably won't need your product again for a while, but when I do I will definitely be back.
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Reviewed in the United States on September 21, 2025
★★★★★ 5
Works well and is easy to install.
Model: SLH20025, Model: SLH20025
I was sound and heat insulating a generator bay in my class A RV so I did three tests before and during material application: I did a sound level test to see how effective the material was for my application, a "stickiness" test, and a flammability test. This was indoors on a dry 78°F day. From beginning to end, the entire process, including testing, took 5 hours to install 25 sqft or material in a very complex area. One hour for cleaning, 3 hours for installation, and 1 hour for test setup and testing.
Using a sound meter, I took before and after readings and determined that I reduced the sound level by 2.2 db (40% energy decrease) with a noticeable decrease in sound and frequency. The generator bay is located under the master bedroom in the aft portion of the coach. The sound went from a rattling, vibrating generator noise to a more tolerable low level rumble.
The material was easy to apply. I did some testing prior to application and determined that surface preparation is key. I cleaned my painted metal surface and then degreased with acetone and the material stuck well. Be careful and purposeful when you apply the material because once it was stuck to the metal, it was quite difficult to remove or reposition.
Since it was going to be installed into a gasoline powered generator bay located under our sleeping quarters, I did some flame testing to determine the level of risk. Although not highly flammable after installation, my testing revealed that the PE used will catch on fire under certain circumstances. In order to reduce the risk, I used aluminized duct tape to ensure that all the edges were sealed and the PE was not exposed to direct flame in the event of a fire. I also decided to install an automatic fire extinguisher as an added precaution. In all fairness there should be one installed in the generator bay anyway.
All in all, I am very satisfied with the product and the results. I have recommended this product to my other RV owner friends.
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Reviewed in the United States on April 13, 2025
★★★★★ 5
Great product. Best value i could find
Model: SLH20025
I'm using talk to text, so forgive any grammatical and spelling errors.
I ordered this product after doing a bit of research on sound dampening materials. I had been doing car stereo for quite some time since my teens. Itook a break for 20 years or so. I'm now 40 and back in the day there was dynamat. And that was about it. as irecently bought a new 2017 F350 crew cab. I wanted to put in a new stereo system and being that it was my dream truck. I was going to put in my dream stereo. But before I could do that, I needed to start with the sound deadening. I looked into today's leading product and found a company called resonx. Had taken their place as king of the hill in sound deadly. I researched their products and found the materials they were built from and Silas was the closest match at the best price I used Silas Max. First, then Silas 3 and 1 hybrid over that on all exterior panels. Then, on the interior panels. I used the 3 and 1 hybrid . on the floor I used Silas Max. Then, the 3 and 1 hybrid, then Silas liner over that the car is incredibly quiet . As far as sound dampening and deadening, it works very well for the money really can't beat it. Do your homework no How and where to apply it? And you really can't go wrong or about $400. I did. What would have cost me easily? Two thousand in other brands highly recommend the product prep work.Is everything do your homework?Do it right and you will be happy with this stuff
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Reviewed in the United States on May 6, 2026