
Upgrade your G37 Sedan Sport's acceleration and drivability with this low-mileage OEM Infiniti 3.69 Final Drive Rear Differential with only 34k miles, factory-equipped on 2008-2013 Infiniti G37 Sedan Sport RWD models with 7-speed automatic transmission and the Sport Package, delivering a significant performance step up from the 3.357 ratio found in base/non-sport automatic G37 models by providing noticeably quicker off-the-line acceleration, improved throttle response, and faster powerband access by keeping the VQ37VHR engine higher in its torque curve through each gear without sacrificing highway cruising RPM to an extreme degree, making it one of the most effective and reliable bolt-on modifications for naturally aspirated or boosted G37 platforms looking for more aggressive gearing, and this complete rear differential assembly is a direct bolt-in replacement using the OEM R200 high-torque differential housing found in all VQ37-equipped G37 Sedans and Coupes featuring Nissan's VLSD - Viscous Limited Slip Differential - which provides improved traction during corner exit and straight-line acceleration by progressively transferring torque to the wheel with the most grip, reducing single-wheel spin and improving stability compared to an open differential while remaining ideal for spirited street driving, canyon runs, and occasional track days with quiet operation and low maintenance compared to clutch-type LSDs, constructed with OEM heat-treated ring and pinion gears, heavy-duty carrier bearings, and precision-machined internals built to handle the full power output of the 330hp VQ37VHR and beyond, with the 3.69 ratio reducing load on the transmission and engine during acceleration which can improve powertrain longevity in performance driving scenarios, and highway RPM at 70mph increases by approximately 300-350 RPM vs the 3.357 ratio which is a modest change most drivers adapt to quickly for the trade-off in acceleration gains from the ∼10% more torque multiplication to the wheels in every gear, offering OEM reliability with no aftermarket noise, clunking, or special fluid requirements, direct fitment for 2008-2013 G37 Sedan RWD Sport models while also being a popular swap for 2008-2013 G37 Sedan Base 7AT, 2008-2013 G37 Coupe 7AT, and 2009-2020 370Z 7AT to replace 3.357 open or VLSD diffs, though axle compatibility requires RWD Sport/370Z style 6-bolt axle stubs since base model 5-bolt axles will need Sport axles or axle stub conversion and it uses the same driveshaft flange as other R200 VQ37 diffs so you should verify companion flange pattern if swapping from non-VLSD, making this 34k-mile differential the ideal upgrade if your original 3.69 VLSD is worn, whining, or damaged, or if you're converting your base model G37 from the taller 3.357 gearing to the more aggressive Sport package ratio, with professional installation recommended and requiring Nissan Matic-D or equivalent 80W-90 GL-5 gear oil with LSD additive, and each unit should be inspected for backlash, gear pattern, and seal condition prior to install to maximize your VQ37's potential with factory-grade reliability and true performance gearing.