Rat Dangerous
Member
- Joined
- Dec 26, 2020
- Location
- Canada
So I have a 1994 north american 940 N/A with an automatic and a b230fd. Reading online it says my rear end had a gearing ratio of 4.10. I am buying a 1990 740 with a m46 and b234 which also has a 4.10 rear end that I will be swapping (the m46) into my car and making an automatic b234. I am wondering if a 4.10 rear with a b230fd and m46 will have too crazy of a gearing for actual comfort of driving as this is my first time doing something like this. Please let me know your driving, shifting, and rpms with swapped m46s and rear axle ratios. With my calculations I can cruise with a 4.10 at 105 km/h (normal canadian highway speeds) at 3000 rpm