CSB went bad.

[RobE30]

I just installed a new to me used driveshaft w/ a new CSB into my 87 and everything went great until I went to bolt in the CSB. The mounting ears are too close together and it's off by about a 1/4". Is there a difference in CSB from an early car to a later car? The shaft is off a 89-90 325i.

OP, clean the splines and regrease them before you reassemble the shaft. It makes things much nicer

[Chriskbmx]

there is a difference between them though i couldn't tell you exactly what it is. but i know for a fact there is a difference.

[jlevie]

There are early and late versions of the CSB. The one on the drive shaft you have is the late version and you need the early one.