Corporate 14 Bolt 3/8" Differential Cover Heavy‑Duty Welded Armored Cover for GM & Chevy 3/4‑Ton & 1‑Ton Trucks This 3/8″ thick diff cover is engineered to protect your Corporate 14 Bolt axle on GM trucks under serious trail and towing use. Made from high-strength A50 plate steel and fully welded inside and out, it delivers rugged durability where it counts. The one-piece cap is bent eight ways and welded to a matching 3/8″ ring, then CNC-machined flat to ensure a perfect seal—no leaks, no fuss. Compatible with both full-float and ribbed 14 Bolt housings; not compatible with AAM axles. Key Features: Part Number: PN1266 Material: 3/8″ thick A50 plate steel (50,000 PSI) Fitment: Corporate 14 Bolt axles (GM/Chevy 3/4 Ton and 1 Ton trucks) Design: One-piece cover bent 8 ways and welded to 3/8″ ring Surface: CNC-machined flat for leak-free sealing Installation: Bolt-on with or without optional bolt kit Bolt Options (sold separately): M8 x 1.25‑30 mm or 3/8″ x 1″ bolts with washers Made in the USA This cover can be purchased with or without diff cover bolts. We offer two hardware kits depending on your axle’s bolt thread size: M8 x 1.25 – 30mm bolts with washers: Commonly used on newer GM axles with metric threads. 3/8" x 1" bolts with washers: Typically found on older 14 bolt axles with standard threads. Both bolt kits are high-strength, zinc-coated Grade 8 hardware, designed for maximum clamping force and corrosion resistance.
