CSB Problem

[up2you]

with the m54b30 5 speed zf transmission, I have driveshaft setup ready and driving good for awhile, but just recently, I got issue with the CSB, CSB broke 2 times already.

I using parts number 26121225152, where my shaft from: 1986 325e coupe manual
but also find out my car is 1989 325i coupe, has different parts number which is 26121226723

my question is which one should I use?
what brand should I using, the 2 I had just cheap one from ecs, I dont think they are well made, that one of the reason it breaks.

Thanks!

[R3VM3UP]

I just purchased a Febi brand CSB for a 325i, part number 26121226723 that you have listed. I have an E36 328i manual driveshaft that I'll be assembling it with shortly for use with my S54 + ZF 5spd. I believe the 325i version is the one that you are supposed to use, but I don't know what the differences between the 'e' and 'i' versions are. What brand have you been using?