The 2010 Dodge Challenger's rear axle, connecting the rear tires, is part of the vehicle's five-link independent rear suspension. Final drive ratios are available from 2.87 to 3.73, depending on specific model.
The 2010 Dodge Challenger features a five-link independent rear suspension with coil springs. The coils permit independent tuning of handling and ride comfort. The 5.7L model also features a limited-slip differential, which limits the difference in the two tires' rotational speeds for added safety in poor handling conditions.
The final drive ratio is the relationship between how many turns of the transmission's pinion equals one turn of the wheels' axle. The ratio for the 2010 Dodge Challenger varies based on the specific model. For the manual transmission 5.7L model, it is 3.73. For the automatic transmission SE and R/T models, they are 2.87 and 3.06, respectively. A higher ratio gives faster acceleration, but poorer gas mileage and a lower top speed.
The rear axle fluid required by the 2010 Dodge Challenger owner's manual is API GL-5 SAE 75W90 for the 5.7-liter and 6.1-liter models or API GL-5 SAE 75W140 for the 3.5-liter model. Your mechanic should inspect the fluid every 18,000 miles or 18 months.
