CKD0403 – CEN KAOS CNC ALUMINUM CHASSIS RAIL HOLDING BLOCKS – SILVER ANODIZED – 2PCS – DL-SERIES

CKD0403 – KAOS CNC ALUMINUM CHASSIS RAIL HOLDING BLOCKS (SILVER ANODIZED, 2PCS) – DL-SERIES

The CEN Racing CKD0403 KAOS CNC Aluminum Chassis Rail Holding Block Set is a two-piece silver-anodized chassis-mounting upgrade for CEN DL-Series / Ford F-450 applications. CEN lists CKD0403 as a CNC-aluminum, silver-anodized, 2-piece upgrade used to secure and locate the chassis rails.

CONFIRMED PRODUCT DETAILS

• Manufacturer: CEN Racing
• Product line: KAOS
• Part number / SKU: CKD0403
• Product type: Chassis rail holding block set
• Construction: CNC aluminum, as stated by CEN
• Finish: Silver anodized
• Quantity: 2 pieces
• Platform: CEN DL-Series / Ford F-450

WHAT THE CHASSIS RAIL HOLDING BLOCKS DO

These blocks form part of the chassis-rail clamping and locating structure. Their job is to hold the frame rails in the intended position relative to the adjoining brackets and chassis hardware so the frame remains correctly aligned during assembly and operation.

MACHINED MOUNTING INTERFACE

Official and dealer imagery shows each CKD0403 block with three threaded mounting positions and a stepped/channeled profile designed to interface with the chassis-rail structure. GASHEAD RC treats the visible hole count and geometry as product-image evidence; CEN does not publish the thread specification, hole spacing or dimensional drawing in its current public listing.

CNC ALUMINUM CONSTRUCTION

CEN identifies CKD0403 as a CNC aluminum component with a silver-anodized finish. No quantified rigidity, strength, frame-flex or durability improvement is claimed because CEN does not publish comparative engineering test data for these holding blocks.

COMPATIBILITY

CEN lists CKD0403 in the KAOS DL-Series F-450 SD Upgrade Parts catalog. AMain and HobbyTown also identify the set specifically for the CEN Racing Ford F-450. Verify the exact chassis rails and adjacent frame hardware before installation if the truck uses custom rails, a lift conversion, altered chassis brackets or other non-stock structural components.

INSTALLATION & ALIGNMENT NOTES

• Clean the mating surfaces on the chassis rails and adjoining brackets before assembly.
• Position both blocks squarely so the rail seats naturally in the intended channel/profile.
• Start all screws by hand before tightening to avoid cross-threading the machined threads.
• Tighten hardware progressively and evenly rather than fully locking one fastener first.
• Verify the left and right chassis rails remain parallel and are not pulled inward or outward by misaligned hardware.
• Recheck frame hardware after the first driving sessions and after hard chassis impacts.

PACKAGE CONTENTS

CEN's current product title confirms 2 pieces. AMain and HobbyTown likewise describe the package as containing two holding blocks. CEN's public product text does not itemize mounting screws or additional hardware, so GASHEAD RC does not assume extra fasteners are included.

MANUFACTURER DATA NOT PUBLISHED

CEN's current CKD0403 listing does not publish aluminum alloy grade, thread size, mounting-hole spacing, block dimensions, anodizing thickness, total weight, recommended torque, machining tolerances or quantified chassis-rigidity improvement. Those values are intentionally not estimated or invented.

Manufacturer designation, CNC-aluminum construction, silver-anodized finish, two-piece quantity, DL-Series fitment and official product image were checked against CEN Racing's CKD0403 listing. Ford F-450 application and package quantity are corroborated by established CEN dealers.