rear diff option for 1988 520i e34

[nsbone_1988_520i]

BimmerD00d,
Appreciate for your help on exact url on Bruno's homepage. I can't seem to find the chart...

[winfred]

probably a .81 od like our sohc motors, the twin cam stuff had the close ratio tranny with no od

I wonder if your 5th gear is a 1:1 like the one on my 1993 525i US spec with a 3.23LSD. If it is an overdrive 5th gear, you might run into a problem with the engine not being powerful enough to move the car with a lower ratio.

[winfred]

it won't be too bad as your car is not as heavy as ours

OK, i believe you have an M5x B25 engine, which rear differential would be different to earlier ones.

My gear is std gearbox with OD. and i realize, it will kill the ability to move the car. A M20B25 conversion is also on the way...