Name: Crown Automotive Differential Case Kit for Jeep Wrangler TJ 2003-2006 with Rear Dana 44 Axle
Brand: Crown Automotive
SKU: 5103017AA
Price: 1161.53 USD
Availability: InStock

// THE FULL RUNDOWN

Crown Automotive Differential Case Kit - Part Number: 5103017AA If you're looking for a reliable replacement for your Jeep's rear differential, the Crown Automotive Differential Case Kit is a solid choice. Designed specifically for the 2003-2006 Jeep TJ Wrangler with a Rear Dana 44 Axle and Trac-Lok, this kit ensures a snug fit and optimal performance. Features Product Notes Fits position: Rear Technical Data This kit is crafted with high-quality metal, ensuring it can withstand the rigors of off-road driving. The RTV construction means it can handle extreme conditions without compromising integrity. Customers have noted that the installation process is straightforward, making it accessible for both professional mechanics and DIY enthusiasts. Customer Feedback Many users have shared their satisfaction with this product. One customer mentioned, "The fit was perfect for my 2005 Wrangler, and I noticed an immediate improvement in my vehicle's handling." Another added, "I appreciate the quality of Crown parts; they feel built to last." With a commitment to quality and a warranty of 12 months or 12,000 miles, Crown Automotive stands behind its products, giving you peace of mind with your purchase. Conclusion Overall, the Crown Automotive 5103017AA Differential Case Kit is a dependable choice for Jeep enthusiasts looking to maintain or restore their vehicle's performance. Whether you're hitting the trails or just need a reliable part for daily driving, this kit delivers. Proposition 65 ⚠ WARNING: Cancer and Reproductive Harm https://www.P65Warnings.ca.gov

// WILL IT FIT? THE STRAIGHT ANSWER

VEHICLE	YEARS	TRIM
Jeep TJ	2003-2006	Sport
Jeep TJ	2003-2004	Sahara
Jeep TJ	2003-2006	SE
Jeep TJ	2003-2006	Rubicon
Jeep TJ	2004-2006	Unlimited
Jeep TJ	2005-2006	Unlimited Rubicon
Jeep Wrangler	2003-2006	Rubicon
Jeep Wrangler	2003-2006	X
Jeep Wrangler	2003-2006	SE
Jeep Wrangler	2003-2004	Sahara
Jeep Wrangler	2003-2006	Sport
Jeep Wrangler	2003	X AT
Jeep Wrangler	2004-2006	Unlimited
Jeep Wrangler	2005-2006	Unlimited Rubicon
Jeep Wrangler	2006	X 65 Aniversario
Jeep Wrangler	2006	65th Anniversary Edition

JAP FITMENT PROMISE // If we confirm fitment for your rig and it doesn't fit, return shipping is on us. No restocking fee. That's the deal.

// GETTING IT TO YOUR GARAGE

THIS PART //

Ships UPS/FedEx ground — estimated $49.95. Additional ground items in the same order ship at reduced rates. Exact rate calculated at checkout.

REAL-COST SHIPPING

We charge what the carrier charges — no padding, no games. Ground parcels via UPS/FedEx, signature required. You see the exact number before you pay.

1-2 DAY HANDLING

Most in-stock parts leave the warehouse within 1-2 business days. Built-to-order parts show extended lead times.

LTL FREIGHT FOR THE BIG STUFF

Bumpers, hardtops, axles and full kits ship LTL truck freight (typically $400-500 per unit, plus shipping protection). Freight is charged per unit — two bumpers means two freight charges. Inspect before signing and note any damage on the delivery receipt.

30-DAY RETURNS

Unused, uninstalled parts in original packaging within 30 days. RMA required — start with a quick message. Shipping charges are non-refundable; freight returns quote at carrier rates.

FULL SHIPPING & RETURNS POLICY

// PAY YOUR WAY

CHECKING PAYMENT NETWORK…

ALL MAJOR CARDS + WALLETS

Visa, Mastercard, Amex, Discover, Apple Pay, Google Pay and Link one-tap checkout — live in our Stripe checkout right now. Card numbers never touch our servers.

BUY NOW, PAY LATER — LIVE

Klarna, Afterpay and Zip are active at checkout on eligible orders. Pick your split at payment — get the lift now, pay as you wheel. No JAP paperwork, approval happens right in checkout.

CRYPTO — LIVE AT CHECKOUT

Pay with crypto directly in our Stripe checkout — select the crypto option at payment and settle in USDC and supported coins. On-chain payment, standard order flow, same warranty.

3-D SECURE + RADAR ANTI-FRAUD

Every card payment runs Stripe Radar machine-learning fraud screening, with 3-D Secure (Visa Secure / Mastercard Identity Check) stepping in automatically when your bank requires it. Your card, verified by your bank.

PCI-DSS L1

HIGHEST CARD-SECURITY CERTIFICATION

AES-256 + TLS 1.3

ENCRYPTED IN TRANSIT & AT REST

TOKENIZED

WE NEVER SEE YOUR CARD NUMBER

Payments are processed by Stripe — the same infrastructure behind Amazon, Ford and Shopify checkouts. Dispute protection and receipt trails on every order. See our Privacy Policy.

// COVERED WHEN IT COUNTS

THIS PART //

Backed by the full Crown Automotive manufacturer warranty. JAP is an authorized dealer — your warranty is valid from day one.

FULL MANUFACTURER WARRANTY

Every part ships new in the box with the manufacturer's standard warranty — terms and duration vary by brand (typically 1 year to limited lifetime on hard parts). We only sell through authorized channels, so coverage is never voided by gray-market sourcing.

WE RUN THE CLAIM WITH YOU

Warranty issue? Don't fight the manufacturer's phone tree alone. Hit our team with your order number and photos — we open the claim with the brand and stay on it until it's resolved.

WHAT WARRANTY DOESN'T COVER

Defects in materials and workmanship are covered. Trail damage, improper installation, modification, and normal wear items (bushings, pads, wear plates) generally are not — that's standard across every brand we carry.

SEPARATE FROM RETURNS

Warranty claims (defects after use) and returns (unused parts within 30 days) are different lanes. Not sure which applies? Message us first — we'll route it the fast way.

START A WARRANTY CLAIM

FITMENT	Jeep Wrangler TJ
BRAND	Crown Automotive — shop all Crown Automotive parts →
PART #	5103017AA
SKU	5103017AA
CATEGORY	Driveline > Differentials > Differentials
AVAILABILITY	IN STOCK
RETURNS	30-day return window

Crown Automotive Differential Case Kit for Jeep Wrangler TJ 2003-2006 with Rear Dana 44 Axle

// THE FULL RUNDOWN

// WILL IT FIT? THE STRAIGHT ANSWER

// GETTING IT TO YOUR GARAGE

// PAY YOUR WAY

// COVERED WHEN IT COUNTS

MORE JEEP DRIVETRAIN & AXLES

// TRAIL REVIEWS