E36 Diff Ratios. Bmw e30 320i 323i 325i manual 5sp. And if going bigger isn t on the list but adding a limited slip is this opens new low cost options as e32 and e34 limited slip differentials are somewhat plentiful and readily available.
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Changing gear ratios as a popular upgrade. If we know the wheel size and gear box ratios as well as the final drive ratio we can work out. Bmws may differ in rear end gearing depending on the power output of the engine as well as if the car was a manual or automatic transmission.
If the ratio is 1 1 then one turn of the prop shaft would equal one turn of the wheels.
E46 m3s use a 3 62 final drive ratio. 323 325 convertible and 323 325 touring 4. The euro m3 used a 210mm ring gear which has been proven to be stronger than the standard us m3 differential. These have 210mm ring gears compared to the smaller 188mm ring gear found in most 6 cylinder bmws save for the e36 m3.
