I have a w50 steel case 5sp g/box.
ratios w50 w58
1st-3.52.1 3.28.1
2nd-2.05.1 1.89.1
3rd-1.39.1 1.27.1
4th-1.00.1 1.00.1
5th-0.85.1 0.78.1
Now my question is, having a 4.1.1 std diff in a ra28 and a 18rgeu which box would be a better option and why? Should I go for a lower ratio diff (or higher) ie. 3.9.1 for better acceleration. How would it affect my top end???