2019-2024 Ram HD 4" 4-Link Conversion Kit with NX2 Nitro Shocks (BDS1721H)
SKU: 48642943761

2019-2024 Ram HD 4" 4-Link Conversion Kit with NX2 Nitro Shocks (BDS1721H)

Sale price$1579.43 Regular price$1754.92
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Description

2019-2024 Ram HD 4" 4-Link Conversion Kit with NX2 Nitro Shocks (BDS1721H)BDS 4" 4 Link conversion lift kit for the 2019 2024 Ram 3500 diesel with factory rear air bags, clearing up to 35" tires. The front converts the factory stamped steel radius arms to a BDS 4 link with HD upper and lower control arms on 1 4" steel brackets to optimize geometry and limit caster change, plus diesel specific progressive rate Pro Ride coil springs, a forged drop pitman arm and track bar bracket for steering correction, sway bar relocation,

BDS 4" 4-Link conversion lift kit for the 2019-2024 Ram 3500 diesel with factory rear air bags, clearing up to 35" tires. The front converts the factory stamped steel radius arms to a BDS 4-link with HD upper and lower control arms on 1/4" steel brackets to optimize geometry and limit caster change, plus diesel-specific progressive-rate Pro-Ride coil springs, a forged drop pitman arm and track bar bracket for steering correction, sway bar relocation, and brake line brackets. A t-case indexing ring and new transmission crossmember let you keep the factory front driveshaft. The rear runs a high-strength fabricated lift block, heavy duty air bag spacers, and longer u-bolts.

Features
  • Heavy duty 4-link improves strength, handling and caster control
  • Front high strength progressive rate coil springs
  • Front track bar relocation bracket re-positions the axle
  • Forged drop pitman arm corrects steering angles
  • Front sway bar correction maintains handling performance
  • HD transmission crossmember and t-case indexing ring allow use of factory driveshafts
  • BDS NX2 nitrogen-charged gas shocks
  • Twin-tube design with 10-stage velocity-sensitive valving
  • Dual-welded ends for increased strength
  • 1-3/8" high-flow piston and self-lubricating seals
  • Silver powder coat finish
Specs
  • Front Lift Method: Coil Spring
  • Rear Lift Method: Block
  • Shocks Included: Yes
  • Front Lift Height: 4 inch
  • Rear Lift Height: 3 inch
Recommended Tire & Wheel Fitment
  • Tire Size: 37x12.5
  • Wheel Diameter: 20x9
  • Back Spacing: 5.625
Notes
  • Fits OE air ride systems only.
  • Dually with 8-bolt (Aisin) transmission requires BDS122409 DEF relocation kit.
  • Mega Cab with 8-bolt (Aisin) transmission requires BDS122409 DEF relocation kit.
  • Vehicles with a manual t-case require BDS122423 manual transfer case shifter extension.
  • Vehicles with a 2-piece rear driveshaft (carrier bearing) require BDS122406 carrier bearing drop.
  • Ram's optional Aisin HD 6-speed transmission in the 3500 uses a different 8-bolt transfer case pattern; the 8-bolt kit also includes an internal shaft seal extension and new shaft seal.
Includes
  • BDS012319, 2019-2024 Ram 3500 Auto Level Air Suspension 3 inch Rear w/o overload (UPC 711745611474)
  • BDS012433, 2019-2024 Ram 2500 / 2019-2024 Ram 3500 4-Link Box Kit 1of2 (UPC 658848612437)
  • BDS012434, 2019-2024 Ram 2500 / 2019-2024 Ram 3500 4-Link Box Kit - 2 of 2 (UPC 658848612444)
  • BDS032403, 2019-2024 Ram 2500/3500 Coil 4 inch Diesel - 5.5 inch Gas (UPC 711745612792)
  • BDS122421, 2019-2024 Ram 3500 T-Case Index 18deg - 8 Bolt (UPC 658848619542)
  • BDS85714, Shock - 26.78 x 15.96 x 2-3/8 - S50/EB2 (UPC 711745609549)
  • BDS85758, Shock- 27.90 x 16.55 x 2-3/8 - EB1/EB1 (UPC 711745609679)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 48642943761

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Matt W
San Leandro, US
★★★★★ 5
Great shirt and Great price
Size: X-Large, Color: Black
I really like this short sleeve shirt — it’s stylish, comfortable, and perfect for any occasion. The fabric feels soft yet durable, and it keeps me cool even on warmer days. The fit is flattering without being too tight, making it a great addition to my everyday wardrobe.
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Reviewed in the United States on October 17, 2025
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Jaime
Birmingham, US
★★★★★ 5
Perfect
Size: X-Large, Color: Navy Blue
Nice and loose. No ironing needed.
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Reviewed in the United States on April 17, 2026
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ozarowicz
New York, US
★★★★★ 5
Great shirt.
Size: Large, Color: Army Green
Light and comfy
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Reviewed in the United States on April 27, 2026
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Amazon Customer
Grantham, US
★★★★★ 4
Good quality and design, but...
Size: Medium, Color: Black(windmill)
The design, fit, and feel are nice, and I'm glad I used the sizing chart within the pictures because typically I have to buy a large in other brands. However, the collar is unsupported and the fabric is like others have said (thin, silky, a little like a shower curtain, and a little like a disco shirt, though surprisingly not stretchy). Not necessarily bad, just unexpected, and pleasantly light. I bought the white polka dot and the gray diamond print. The white was a tiny bit see through and the gray has a very subtle color change throughout the fabric undulating slightly lighter to slightly darker, which I did not notice from the pictures, but was nice. Unfortunately, the pocket fabric didn't switch lightness and darkness the same as the rest of the shirt, so the one I received had a dark splotch right next to the lighter pocket fabric making it look like a grease stain on the center of the shirt. The two were also slightly different in size even though they were both listed as the same size (medium). The white one pulled across the chest and had more fabric on the sides, the grey one fit beautifully with a nice taper, but it had the "stain." I did not wash mine or try to get the wrinkles out, but the crease of the fabric upon arrival is very prominent, and I would imagine it is hard to get out. All-in-all, I didn't love the shirts, so I returned them. But the fabric was nice, thin, and comfortable but I wouldn't say cheap. The shirt was a little more casual with the unsupported collar which is just good to consider. And there were some minor inconsistencies with sizing. I would have kept the gray had the pattern lined up better and perhaps I just got the one bad one.
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Reviewed in the United States on July 2, 2025
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Aaron
Draper, US
★★★★★ 5
I love these shirts!
Size: 4X-Large, Color: Blue Combo
These shirts are great! They’re super comfortable, super stylish, and they fit me! I’m a fat guy and they make me look great. Here’s a tip if you’re fat like me. Sit down in a chair and measure around your biggest area, then use that as your “chest” size on their charts. Order whatever size is just a little bigger than your measurement. Always check the charts because they’re not always the same.
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Reviewed in the United States on May 20, 2026

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