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Recommended: 6 quarts of
Nitro Synthetic Plus Gear Lube
Gear Package Kit Includes:
Nitro front ring & pinion
Nitro front Master Install Kit
Nitro rear ring & pinion
Nitro rear Master Install Kit
3.73 & Up Front Carrier Required. Models with factory 3.21 gears will also need front carrier part # NC-D30JK-4.
(Sold Separately). Dana 30 & Dana 44 JK models are specific to the wrangler JK, they are not universal.
(Open carriers reuse original internal gears.)
Suffering from poor performance and reduced fuel economy resulting from over-sized tires?
If you've fitted larger tires to your Jeep then you have likely experienced a loss in performance and fuel economy. Most people also recognize the constant shifting of the transmission as it 'hunts' for a gear that works best with those larger tires. This happens because the larger tires reduce
your engine’s RPMs below the optimal power band. Re-gearing the differentials
in your vehicle is the only way to get your vehicle back into its optimal
operating RPM range, thus improving performance and reducing strain on your
vehicle’s drive-train. This is especially important for today’s Jeep Wrangler as
they feature small displacement engines, with tall factory gearing and
overdrive transmissions which are less tolerant to increase in tire size or the
weight of added accessories. It’s a common misconception that gear changes are
reserved only to hardcore off-roaders or trucks with huge tires. However,
re-gearing is one of the single most beneficial modifications you can make to
keep the performance, economy, and durability of your daily-driven 4x4. This is
a mod for anyone with larger tires, increased weight, or for increased
performance on stock vehicles for towing or increased acceleration.