Hey there,bringing back this forum
I have a c34 laurel with a RB20e and the alternator crapped out a couple weeks back. I managed to score a reconditioned RB25DET alternator out of an R33 which fit directly in etc, However it somehow looks misaligned to me. This may have been because i swapped over the RB20e alternator pulley onto the RB25DET alternator.
@dj8684 Did you just install the RB25DET alternator and RB25DET pulley and just get a bigger belt? Cheers.