Name: Motive Gear Differential Ring and Pinion Complete Kit for Jeep N/A, MGK-129
Brand: Motive Gear
SKU: MGK-129
Price: 1237.94 USD
Availability: InStock

// THE FULL RUNDOWN

If you're diving into the world of serious off-roading or just want to beef up your Jeep's drivetrain, you can't go wrong with Motive Gear. These guys are known for crafting some of the most durable ring and pinion gear sets out there. It's not just marketing fluff; their products have been tested in the trenches of racing events around the globe. So, whether you're tackling tough trails or just cruising around town, these gears are built to last. This particular kit is a complete differential ring and pinion setup for your Jeep CJ5 or CJ7, specifically designed for the Dana 30 and AMC 20 axles. With a gear ratio of 4.56, you’ll get that perfect balance between power and efficiency. This setup is ideal if you’re running larger tires or just want to improve your low-end torque. Plus, it’s made from 8620 steel, which means it can take a beating and keep on ticking. Features Notes: This kit is designed for Dana 30 and AMC 20 axles. It's perfect for setups running a 3.73 and higher carrier in the front and a 3.08 and higher carrier in the rear. So, if you're looking to upgrade, this is a solid choice. Fits position: N/A Products Fitment: Jeep CJ5 1976-1983 Jeep CJ7 1976-1986 Proposition 65 ⚠ WARNING: Cancer and Reproductive Harm https://www.P65Warnings.ca.gov

// WILL IT FIT? THE STRAIGHT ANSWER

VEHICLE	YEARS	TRIM
Jeep CJ5	1976-1983	Base
Jeep CJ5	1976-1983	Renegade
Jeep CJ5	1977-1980	Golden Eagle
Jeep CJ5	1980-1983	Laredo
Jeep CJ5	1982-1983	Limited
Jeep CJ7	1976-1986	Base
Jeep CJ7	1976-1986	Renegade
Jeep CJ7	1977-1979	Golden Eagle
Jeep CJ7	1980-1983, 1985-1986	Laredo
Jeep CJ7	1980	Golden Hawk
Jeep CJ7	1982-1984	Limited
Jeep CJ7	1983-1984	Renegado

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…

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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.

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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.

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// COVERED WHEN IT COUNTS

THIS PART //

Backed by the full Motive Gear 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 - See Description
BRAND	Motive Gear — shop all Motive Gear parts →
PART #	MGK-129
SKU	MGK-129
CATEGORY	Driveline > Differentials > Ring and Pinion
AVAILABILITY	IN STOCK
RETURNS	30-day return window

Motive Gear Differential Ring and Pinion Complete Kit for Jeep N/A, MGK-129

// 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