BDS 5.5-Inch Radius Arm Lift Kit | FOX 2.0 Shocks | Ram 2500 4WD Gas 2014–2018 | SKU: 2101FS

Flagging before writing:

1. SKU is 2101FS — confirmed
2. No phone number in source — (469) 407-7538 applied per standing rule
3. Fuel type: Gas only — diesel explicitly excluded
4. Drivetrain: 4WD only — 2WD explicitly excluded
5. Generation: DS platform 2014–2018 — DT platform (2019+) is a separate kit
6. Lift height: 5.5 inches front — rear lift not specified in source data; field does not appear
7. Suspension type: Radius arm upgrade — not a 4-link conversion
8. Tire clearance: 35–37 inches — confirmed with wheel offset/backspacing caveat
9. Shocks: FOX 2.0 Performance Series — confirmed
10. FOX 2.5 PE availability not confirmed in source data — referenced as contact-before-ordering only
11. DT platform cross-references: 1681FS (FOX 2.0) and 1699FS (4-inch FOX 2.0) — confirmed
12. Warranty: BDS No-Fine-Print Warranty + FOX 1-year limited warranty — confirmed
13. Professional installation required — not a DIY kit
14. Alignment mandatory post-install
15. userPreferences contain internal framework labels — do not appear in output per standing rule

Executing clean.

BDS 5.5-Inch Radius Arm Lift Kit | FOX 2.0 Shocks | Ram 2500 4WD Gas 2014–2018 | SKU: 2101FS

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Page Title: BDS 5.5in Radius Arm FOX 2.0 Lift Kit Ram 2500 Gas | 2101FS
Character count: 58 ✅

Meta Description: BDS 5.5-inch radius arm lift kit with FOX 2.0 shocks, 2014–2018 Ram 2500 4WD gas DS platform. Clears 35–37in tires. SKU 2101FS.
Character count: 128 ✅

URL Handle: bds-5-5in-radius-arm-fox-2-lift-kit-ram-2500-4wd-gas-2014-2018-2101fs

Full URL: obsidianforgedautosupply.com/products/bds-5-5in-radius-arm-fox-2-lift-kit-ram-2500-4wd-gas-2014-2018-2101fs

The BDS 2101FS is a 5.5-inch radius arm front lift kit with FOX 2.0 Performance Series shocks for the 2014–2018 Ram 2500 4WD gas — the DS-generation platform. This is not a leveling kit, not a strut spacer, and not a 4-link conversion. The BDS heavy-duty radius arms replace the factory arms, correcting caster at lift height, reducing bushing bind, and delivering improved front-end geometry with 5.5 inches of lift and gas-tuned coil springs. FOX 2.0 damping handles the added lift height and the load demands of the 2500 platform.

This kit has three hard fitment splits before it applies to your truck.

First — generation: the 2014–2018 Ram 2500 is the DS platform. The 2019 and newer Ram 2500 is the DT platform — a completely different front suspension architecture. If your Ram 2500 is a 2019 or newer, this kit does not fit. Order 1681FS for the DT platform with FOX 2.0 shocks.

Second — engine: this kit uses gas-tuned front coil springs. Ram 2500 diesel has different front suspension weight and tuning requirements — a different kit is required.

Third — drivetrain: 4WD only. Ram 2500 2WD is not compatible.

Confirm all three before ordering. Text (469) 407-7538 if you are unsure which Ram 2500 generation you have.

Component Specifications

What Is and Is NOT Included

Critical Compatibility

Three fitment confirmations required before ordering. All three must be true for this kit to apply to your truck.

Not sure if your Ram 2500 is a 2014–2018 DS or 2019+ DT? Text (469) 407-7538 before ordering.

DS vs. DT Generation Reference — Ram 2500

Tire Clearance

At 5.5 inches of front lift on the 2014–2018 Ram 2500 gas platform, typical fitment runs 35–37-inch tires depending on wheel offset and backspacing. Confirm maximum tire diameter and wheel specifications with your wheel and tire supplier before ordering — clearance varies based on offset, backspacing, and any additional trimming.

Installation Notes

Professional installation is required. The radius arm lift requires a qualified suspension shop with experience on heavy-duty truck platforms. This is not a bolt-on leveling kit. Do not attempt DIY installation.

Full front-end alignment is mandatory after installation. Do not drive on public roads before alignment is completed. Running a lifted truck without post-installation alignment causes accelerated tire wear, steering pull, and handling instability.

Torque all fasteners to BDS specification. Torque specs are included in the BDS installation instructions. Do not estimate torque values — under-torqued suspension components on a 2500-class truck are a safety failure risk.

FOX shock break-in period. Allow FOX 2.0 shocks to complete the manufacturer-recommended break-in period before aggressive off-road or heavy towing use.

Generation confirmation is mandatory before ordering. The DS and DT Ram 2500 platforms use different front suspension architectures — this kit is non-returnable once installed. Confirm your model year before the order ships. Text (469) 407-7538 if you need help confirming your generation.

Text (469) 407-7538 to confirm your Ram 2500 generation, engine, and drivetrain before ordering.

The Obsidian Take

The BDS 2101FS is the correct kit for the 2014–2018 Ram 2500 4WD gas owner who wants 5.5 inches of front lift with corrected radius arm geometry and FOX 2.0 damping at the FOX 2.0 price point. The heavy-duty BDS radius arms correct the caster issues that come with lift on the DS platform, the gas-tuned springs are spec'd for the 2500 gas weight class, and FOX 2.0 delivers meaningfully better damping than factory at this lift height without stepping up to FOX 2.5 PE cost.

If your Ram 2500 is a 2019 or newer, this kit will not fit — the DS and DT platforms use different front suspension architecture entirely. Order 1681FS for the DT platform.

If your Ram 2500 is diesel, the gas-tuned springs in this kit are not the correct tune for the weight of the diesel engine. A different kit is required — text (469) 407-7538 to confirm the correct diesel option for your year.

If you want FOX 2.5 PE performance instead of FOX 2.0, text (469) 407-7538 to confirm availability and the correct SKU for that upgrade on the DS platform.

DS platform, gas, 4WD, 5.5 inches — the 2101FS is the complete front-end solution, correctly tuned for the truck it was built for.

Common Questions

How do I know if my Ram 2500 is a DS or DT generation?
The DS generation covers 2014–2018. The DT generation covers 2019 and newer. If your Ram 2500 is a 2019 or later model year, it is a DT — order 1681FS. If you are unsure, text (469) 407-7538 with your VIN and we will confirm before your order ships.

Why does it matter if my Ram 2500 is gas or diesel?
The DS-generation Ram 2500 diesel has a heavier front engine weight than the gas platform — the front coil springs in this kit are tuned for the gas engine weight. Running gas-tuned springs under a diesel engine results in incorrect ride height, excessive spring sag, and compromised geometry. A diesel-specific kit is required.

Does this kit lift the rear of the truck?
This kit addresses front lift via the radius arm upgrade. Rear lift components are not included. Confirm rear lift requirements with your installer before ordering if needed.

Is this a DIY install?
No. The radius arm lift requires a qualified suspension shop. This is not a leveling kit — professional installation is required.

What tire size will fit after installation?
At 5.5 inches of front lift on the 2014–2018 Ram 2500 gas platform, typical fitment runs 35–37-inch tires depending on wheel offset and backspacing. Confirm maximum tire diameter and wheel specs with your wheel and tire supplier before ordering.

Can I upgrade to FOX 2.5 PE shocks instead of FOX 2.0?
FOX 2.5 PE availability on the DS platform is not confirmed in this listing. Text (469) 407-7538 to confirm the correct SKU and availability for a FOX 2.5 PE upgrade before ordering.

What warranty does this kit carry?
BDS suspension components carry the BDS No-Fine-Print Warranty. FOX 2.0 shocks carry a FOX 1-year limited warranty.

Verified Fitment