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AMP Research BedStep | Frame-Mounted | Foot-Activated | 2020-2024 Silverado/Sierra 2500/3500 HD SRW | SKU 75327-01A
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Description
The AMP Research BedStep (SKU 75327-01A) is the frame-mounted, foot-activated retractable bumper step for the 2020–2024 Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD — SRW (Single Rear Wheel) only. Die-cast aluminum alloy construction, stainless steel pivot pins, glass-reinforced composite step pad. Mounts under the rear bumper — works with an open tailgate or while towing. Supports up to 300 lbs. Bolt-on installation in most applications; minor drilling may be required in some. 3-year warranty against manufacturing and material defects. 11 lbs.
This SKU is SRW only. The 3500 HD DRW (Dually) has a different rear frame and bedside profile and requires a separate unit.
Component Specifications
| Spec | Detail |
|---|---|
| SKU / Part Number | 75327-01A |
| Brand | AMP Research |
| Type | BedStep — frame-mounted retractable bumper step |
| Platform | 2020–2024 Silverado/Sierra 2500/3500 HD — SRW only |
| Mount Type | Frame-mounted, driver or passenger side — under rear bumper |
| Activation | Foot-activated deploy/retract |
| Construction | Die-cast aluminum alloy linkage |
| Step Surface | Glass-reinforced composite step pad |
| Pivot Pins | Stainless steel |
| Load Rating | 300 lbs |
| Installation | Bolt-on for most applications; minor drilling may be required in some — step orientation may vary, see installation guide |
| Weight | 11 lbs |
| Shipping Dimensions | 21" L x 9" W x 7" H |
| Warranty | 3-year against manufacturing and material defects |
| Country of Origin | United States |
| Sold As | Each |
What Is and Is NOT Included
| Item | Included |
|---|---|
| BedStep unit with mounting hardware | ✓ |
| DRW-specific mounting | ✗ NOT included — DRW (Dually) requires a different SKU |
Verified Fitment
| Vehicle | Years | Wheel Config | Status |
|---|---|---|---|
| Chevrolet Silverado 2500 HD | 2020–2024 | SRW | ✓ |
| Chevrolet Silverado 3500 HD | 2020–2024 | SRW | ✓ |
| GMC Sierra 2500 HD | 2020–2024 | SRW | ✓ |
| GMC Sierra 3500 HD | 2020–2024 | SRW | ✓ |
| Silverado/Sierra 3500 HD | 2020–2024 | DRW (Dually) | ✗ Different rear frame and bedside profile — requires a DRW-specific BedStep |
| Silverado/Sierra HD | 2025–2026 | SRW | ⚠️ Not clearly confirmed across sources — verify before ordering |
| Silverado/Sierra HD | 2019 and earlier | Any | ✗ Different rear frame mounting geometry — requires a generation-specific BedStep |
Critical Compatibility
| Configuration | Notes |
|---|---|
| Silverado/Sierra 3500 HD DRW (Dually) | Does not fit — different rear frame and bedside profile, requires a DRW-specific unit |
| Pre-2020 Silverado/Sierra HD | Does not fit — different rear frame mounting geometry |
| 2025–2026 model years | Not clearly confirmed — verify directly before ordering |
| Aftermarket rear bumpers, rear armor, tow sensor brackets, or trailer hitch receivers | May interfere with frame mount or step travel path — verify clearance before ordering |
Common Questions
Does this fit a Dually (DRW) 3500 HD?
No. The DRW has a different rear frame and bedside profile than the SRW. This SKU is SRW only — confirm your wheel configuration before ordering.
Will this work with my tailgate open or while towing?
Yes. The BedStep frame-mounts under the rear bumper specifically so it functions normally with the tailgate open or with a trailer hitched.
Does installation require drilling?
Most applications are bolt-on using existing mounting points. Some applications may require minor drilling, and step orientation may vary — confirm with the installation guide for your specific configuration.
Does this fit a 2025 or 2026 HD truck?
Not clearly confirmed. Available sourcing is inconsistent on the upper end of the year range. Verify directly before ordering for a newer model year truck.
The Obsidian Take
The BedStep (75327-01A) is for the 2020–2024 Silverado or Sierra 2500/3500 HD SRW owner who wants reliable foot-activated bed access at the rear bumper without giving up tailgate or towing functionality. Die-cast aluminum, glass-reinforced step pad, 300-lb rating, 3-year warranty — simple, mechanical, no electronics.
One mandatory check before ordering: confirm SRW, not DRW. The dually's rear frame and bedside geometry are different enough that this BedStep will not mount correctly on a dually-equipped 3500 HD.
Non-Returnable Notice: Once installed, this unit is non-returnable per AMP Research policy. Confirm wheel configuration (SRW vs. DRW) and model year before ordering.
Manufacturer Data Disclaimer: Specifications sourced from AMP Research and authorized distributor documentation. Available sources do not clearly confirm fitment through 2026 — confirmed range is conservatively 2020–2024. Obsidian Forged Auto Supply is an authorized AMP Research dealer. Manufacturer specifications are subject to change without notice.