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Description
The 1947–1954 Chevy / GMC Half-Ton SuperSlide Rear Drop Multi-Leaf Springs (Pair) by Posies lowers the rear of Advance Design trucks and Suburbans by 3" or more while dropping directly into original factory frame mounts without chassis modification.
Available in both stock center-pin configurations for original torque-tube setups and offset pin configurations for modern open-driveline rear end swaps, these leaf springs utilize Posies' signature SuperSlide moly-nylon inter-leaf buttons to eliminate metal-to-metal friction for a quiet, comfortable ride.
Driveline & Part Number Options
Part Number Variant
Center Pin Alignment
Application & Driveline Type
#440
Stock Center Pin
Standard 1/2-Ton 3100 Trucks using Stock Torque-Tube / Driveline
#440H
Stock Center Pin
Suburban / Heavy Duty Applications using Stock Torque-Tube / Driveline
#440A
3" Offset Center Pin
Standard 1/2-Ton 3100 Trucks using Late-Model Open Driveline & Rear Axle Swaps(Centers rear wheel in fender opening; not for torque-tube)
#440HA
3" Offset Center Pin
Suburban / Heavy Duty Applications using Late-Model Open Driveline & Rear Axle Swaps
Key Features & Design Highlights
3" Plus Rear Lowering Stance: Delivers a modern dropped stance without sacrificing suspension load capacity or spring movement.
Direct Bolt-In Installation: Fits into factory spring hangers and shackle points without frame cutting, drilling, or modification.
SuperSlide Inter-Leaf Technology: Features embedded moly-nylon buttons at the leaf tips to prevent metal-on-metal friction, squeaks, and harsh spring slap.
Pre-Installed Bushings: Shipped with front and rear spring eye bushings installed for straightforward mounting.
American-Made Construction: Hand-assembled in the USA using premium tempered spring steel.
Bump Stop Clearance: Original rubber rear frame bump stops must be trimmed down or removed to prevent bottoming out at the lower stance.
Shackle Kit Notes: When ordered alongside Posies #450R rear shackle kits, the threaded eye bushings are pre-removed at the factory to accept aftermarket shackle studs.
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Refund Policy
We offer a 30-day return policy, which means you have 30 days from the date you receive your item to request a return.
Eligibility for Returns
To be eligible for a return, your item must be:
In the same condition as received
Unworn or unused
With original tags attached
In its original packaging
You must also provide a receipt or proof of purchase.
How to Start a Return
To initiate a return, please contact us at jonathon@hotrodhardware.com. Once your return request is approved, you will be provided with the return address and, if applicable, an RMA (Return Merchandise Authorization) number.
Important: Items sent back without prior authorization will not be accepted.
If you have any questions regarding your return, feel free to contact us at the email above.
Damages and Issues
Please inspect your order upon delivery. If your item is defective, damaged, or if you received the wrong item, contact us immediately so we can evaluate the issue and resolve it promptly.
Exceptions / Non-Returnable Items
The following items are not eligible for return:
Custom or personalized products (including special orders)
Hazardous materials, flammable liquids, or gases
Sale items
Gift cards
If you are unsure whether your item qualifies, please contact us before initiating a return.
Exchanges
The fastest way to receive a replacement item is to return your original item (once approved) and place a new order separately.
Free Shipping Orders
Orders that qualified for free shipping are subject to deduction of the original outbound shipping cost if the item is returned.
Refunds
Once your return is received and inspected, we will notify you regarding the approval status of your refund.
If approved:
Refunds will be issued to your original payment method
Any applicable restocking fees will be deducted
Original shipping charges (if applicable) will be deducted
Return shipping costs (if arranged by Hot Rod Hardware) will be deducted
Please note:
Payment processing fees (including PayPal, Amazon Pay, or other merchant fees) are non-refundable
It may take additional time for your bank or credit card provider to process and post the refund
