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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4.2 ★★★★★
Based on 10 reviews
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Product Reviews
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Verified Purchase
Justin Gatlin
Port Orchard, US
★★★★★ 4
Nice shoes for about a year and a half
Size: 13 Wide, Color: Brown, Size: 13 Wide, Color: Brown
I bought these shoes about a year and a half ago and they are comfortable and look much more expensive than they actually are. Today, I noticed them starting to tear a little bit, but if I can replace them every 18 months for this price, it is probably still a better value than high end shoes. The grip is good for dress shoes and has held up well, and they are a good fit that does not cause blisters from excessive rubbing. I might not choose these if I need to wear them every day because of their lifespan, but for a once or twice a week pair of dress shoes, they are a good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2025
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Runs big but great shoe!
Size: 12 Wide, Color: Black
Great looking shoe at a very good price! Runs big, I had to get the next size down for my son.
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Reviewed in the United States on May 17, 2026
B
Verified Purchase
Butch M.
West Palm Beach, US
★★★★★ 5
Fantastic Shoe for the Price
Size: 9.5 Wide, Color: Wingtip Black
Okay, I’m used to spending big bucks on men’s dress shoes. I’m talking $300 plus for American made shoes. They are recraftable (resole-able) for another $100 each time. But since Covid, I don’t go to the office as often. One of my black dress shoes needs to be re-soled, and it will be. Just not now. So I ran into these shoes on Amazon. It’s hard to argue with the price. Literally 10% of what I have been paying. So, are these shoes 90% lower in quality? The short, simple answer is, surprisingly, no. Just the opposite. Upon receipt, I inspected them carefully and they looked pretty darned decent. I was looking for any excuse to plop them back in the box and return them. I couldn’t find anything. I appreciate that the leather upper is smooth and mildly shiny. This is a wing tip style shoe, so I’m impressed that the extensive stitching was evenly spaced. The leather detailing that I expect on a wing tip is also all there. Inside the shoe, it is lined from the toes all the way to the heel box… nice! And that leather feels surprisingly supple. That is something I would expect on a much more expensive shoe. But definitely not at this price point. Hmm. I even liked the wax laces they chose. They are a little thicker and have more than adequate length. The shoe’s eyelets have interior facing metal grommets to protect against stretching and tear out of the leather and helps protect the laces against friction wear, as they are tightened and loosened over time. Now having that detail, at this price point, has raised both of my eyebrows. Double hmm. Now I am really impressed. The only thing that I didn’t like was that the stitching—that joins the uppers to the sole—is white. I needed to polish these shoes anyway, so I figured I’d see what would happen if I put black polish on the stitching. I’m happy to say that the uppers shine up very nicely, to a high gloss. This was done with just a little bit of buffing, using a traditional horse hair bristled brush. And followed by a buffing cloth. Although I didn’t do it, the leather is smooth enough that I probably could have spit shined them. And those pesky white stitches on the top side of the soles? Well I’m happy to report that they are now definitely black. Turning the shoe over, I can visually see a lump where the shank is supposed to be. That’s a good thing. Not all shoes have a shank. It helps to support the arch. That’s another nice detail. I am expecting the shank to be plastic at this price point. So I am utterly shocked to report to you that a magnet sticks to the bottom of the shoe. That shank is steel! Now I am amazed! We’re talking mind blown, Purple smoke everywhere. Speaking of details, I was very surprised to see the nicely done wing tip detailing, from on top of the shoe, carried over to the bottom of the sole. Wow. I have never seen that before. That’s surprising. Now it is important to point out that the sole is some man made material. Definitely not leather. But that’s okay. Especially in the wet, leather wears out quickly, if you don’t wear rubber over shoes. One less thing to fuss about. The heel itself has a band/layer of rust brown material sandwiched between black layers. I wonder if that is a cork or bamboo material? Having walked in these shoes, on concrete and tile floors, last week, there is a noticeable level of cush, or give. They will definitely not to be confused with sneakers. But for dress shoes, this is a pleasant and surprising experience. The first day, I wore them at home, over the weekend and I’m glad I did that. They needed time to adjust to my feet. Any dress shoe that I have ever worn needs that. But after that, these shoes have been pleasant enough to walk around in at work. I’d have to say that these shoes give me at least 90% of what I would expect from my $300+ shoes for around 10% of the cost. In my estimation, at their current price point, they constitute an excellent deal. And especially if you are just breaking into the business world and need a good pair of interview shoes, these are definitely respectable… just be sure to put black polish on the white stitches. Oh, BTW, I have wider feet and I ordered the shoe wide. After the initial stretching, they fit nicely. So, in the final analysis, what do I think? I have to say, yes, these shoes definitely get my recommendation. Especially if price is a huge factor, then these shoes constitute an excellent deal.
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Reviewed in the United States on March 20, 2023
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Verified Purchase
Nikki
Chelsea, US
★★★★★ 5
Great dress shoe
Size: 10.5 Wide, Color: Black
Wow. Very impressed with these. Would purchase again. Comfortable enough for my teenage son, my husband and I very impressed with their look. Great for any special occasion. Ours appear to be all leather. Even the sole. These will last a lifetime if cared for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
K
Verified Purchase
Kim S
Battle Creek, US
★★★★★ 5
Great buy!!!
Size: 11, Color: Dark Brown
Very happy with shoes, color was good. Size was perfect. Comfort was great!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026

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