240 B23/230 Alternator setup the same?

in General
Hey guys
Is there a difference between the b23/230 alternator setup? Swapping my gear from my B23 to 230 the belts wont fit, being too small. They are 10 x 920.
Thanks
Is there a difference between the b23/230 alternator setup? Swapping my gear from my B23 to 230 the belts wont fit, being too small. They are 10 x 920.
Thanks
Comments
Different length belt I can understand, as the crank pulley is different is it not?
Present: 1977 244DL, 1996 850R wagon (black), '91 240 GLE "Brapwagon"
Associated acts: '81 244 DL "Band-Aid", '81 244 GL Turbo "Billie"
I guess I will make a visit to super expensive auto in the morning. Thanks James