• Top Street Performance GM 10.5" 14-Bolt Chrome Steel Differential Cover - for street and performance builds
1 1
Top Street Performance

GM 10.5" 14-Bolt Chrome Steel Differential Cover

GM 10.5" 14-Bolt Chrome Steel Differential Cover

SKU: SP7123

$29.00
$29.00 $31.90
Shipping calculated at checkout.

Out of stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Chrome steel cover fits GM 10.5" 14-bolt full-floating rear differential
  • Identified by 14 cover bolts and a 10.5" ring gear diameter
  • Will not fit GM 9.5" or 11.5" 14-bolt differentials — different bolt patterns
  • Gasket, hardware, filler plug, and drain plug not included

Description

This chrome steel differential cover is built for the GM 10.5" 14-bolt full-floating rear differential. Correct cover shape, bolt pattern, and sealing rail match are critical for leak prevention and reliable rear-end service.

Steel construction with a chrome finish supports durability, housing protection, and a clean axle appearance.

This is a bare cover only — gasket, hardware, filler plug, and drain plug are not included. Always verify your axle model, ring gear size, fill level, and suspension clearance before installation.

Specs

Cover MaterialSteel
Cover FinishChrome
Cover DesignPlain
Cover Bolts14
Ring Gear Bolts12
Filler PlugNot Included
Drain PlugNot Included
GasketNot Included
HardwareNot Included

Engine Fitment

COMPATIBLE WITH
GM 10.5" 14-BOLT FULL-FLOATING REAR DIFFERENTIAL

NOTES
Designed to fit the GM 10.5" 14-bolt full-floating rear differential — identified by 14 cover bolts and a 10.5" ring gear diameter.
Will not fit the GM 9.5" 14-bolt or 11.5" 14-bolt differentials — those use different cover bolt patterns and housing dimensions despite sharing the "14-bolt" name.
Chrome steel finish adds style while protecting the differential from dust and road debris.
Gasket may or may not be included — verify before installation and replace any disturbed gaskets during cover service.
Verify ring gear diameter and cover bolt count before ordering to confirm correct fitment.

COMMON VEHICLE APPLICATIONS
Chevrolet C20 / C2500 (1973–1998)
Chevrolet C30 / C3500 (1973–1998)
Chevrolet K20 / K2500 (1973–1998)
Chevrolet K30 / K3500 (1973–1998)
Chevrolet Silverado 2500 / 2500 HD (1999–2013)
Chevrolet Silverado 3500 (1999–2015)
Chevrolet Suburban 3/4 Ton (1973–2000)
Chevrolet Avalanche 2500 (2002–2006)
Chevrolet Express 2500 / 3500 (1996–present)
GMC C25 / C2500 (1973–1998)
GMC C35 / C3500 (1973–1998)
GMC K25 / K2500 (1973–1998)
GMC K35 / K3500 (1973–1998)
GMC Sierra 2500 / 2500 HD (1999–2015)
GMC Suburban 3/4 Ton (1973–2000)
GMC Savana 2500 / 3500 (1996–present)
GMC Yukon XL 2500 (2000–2015)
Cadillac Escalade ESV 2500 (2002–2006)

Q&A

What differential does this cover fit?
This differential cover is designed for the GM 10.5-inch 14-bolt full-floating rear differential, identified by its 14-bolt cover and 10.5-inch ring gear.

Will this fit a GM 9.5-inch or 11.5-inch 14-bolt differential?
No. Although they all carry the "14-bolt" designation, the GM 9.5-inch, 10.5-inch, and 11.5-inch differentials use different housings, cover bolt patterns, and dimensions. This cover fits only the GM 10.5-inch 14-bolt full-floating rear axle.

What vehicles is this cover compatible with?
This differential cover fits a wide range of GM 3/4-ton and 1-ton trucks, SUVs, and vans equipped with the GM 10.5-inch 14-bolt full-floating rear axle, including Chevrolet Silverado 2500HD and 3500HD, GMC Sierra 2500HD and 3500HD, Chevrolet Suburban, Chevrolet Express, GMC Savana, and Cadillac Escalade ESV applications. Verify your axle's ring gear diameter and cover bolt count before ordering.

Does this include a gasket or hardware?
No. This is a bare differential cover only. A gasket, mounting hardware, filler plug, and drain plug are not included and must be purchased separately.

What material and finish is this cover?
This differential cover is manufactured from steel and features a durable chrome finish for corrosion resistance and a classic appearance.

How many bolts does this cover use?
This cover is designed for housings that use 14 differential cover bolts.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.