Drivetrain› Differentials and Rear-End Components

Modern Muscle

9-Inch Rear Differential Conversion Package with 1400HP Axles

$1,707.90

SKU: DSS-CH9-LX2-A

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

The Modern Muscle 9-inch rear differential conversion package is designed for 2009-2014 Dodge Challengers with automatic transmissions. This kit allows your HEMI-powered hot rod to exceed the horsepower limitations of the stock Getrag differential, driveshaft, and axles. It features 1400HP-rated axles and a 9-inch front-mounted rear housing.
Show original supplier description
The Modern Muscle 9-inch rear differential conversion package by DSS is engineered to enhance the performance of 2009-2014 Dodge Challengers equipped with automatic transmissions. The package includes a 9-inch front-mounted rear housing and features axles rated for an impressive 1400HP. Additionally, a 4-inch aluminum driveshaft is included to complement the upgraded rear end. The kit comes complete with a bare 9-inch rear housing, front mount, and 1400HP-rated differential stubs and axles. The outer CV joints are extreme-duty billet units with fully REM polished internals, paired with Porsche-style 930 inner CV joints. DSS has custom-manufactured these CV internals to utilize the largest center bar available, ensuring they are among the strongest tested components on the market, used in record-breaking drag racing applications. The DSS 9-inch kits are designed for compatibility with Strange center sections and 5-bolt pinion supports; modifications may be required if using a center section from a different manufacturer.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandModern Muscle
Part NumberDSS-CH9-LX2-A
CategoryDrivetrain
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy