?BMW: Easier to replace entire Center bearing mount or press in a new bearing, or rebuild driveline?

Question

Guys & gals, thanks for your input, an update on my progress. Might stay with OEM engine, my engine does not leak coolant or oil. May be the electric fan relay or fan motor is out. Don't know which yet. The vibration from under caridge/driveline, think it's center bearing, I'm replacing it, first. For front-end, I'm looking at replacing lower control -arm bushings, tie-rods ends, & may be struts. The problem is encountering pot holes & having no control afterwards. Put on new wires, car runs better, RPM dropped some. Must look at senors or get an OHM meter to help check.

Answer 1

Vibration huh?
Well, you'll have to pull the entire drive shaft out to do the carrier bearing anyway. So I'd have to say replace Transmission shaft seal, and U-joints too.

Don't waste your time with the Diff. seal. The yoke nut is a bitc%.
As far as ballancing the drive line?? Unless you see some indication of damage, or it seems to be missing a ballancing weight (welded on) don't bother with ballancing it.

Check the end play of the input shaft bearing to the differencial. (up and down)

While you're there, you may want to replace the tranny mount, and check the cross member for secureness.

Answer 2

i would rebuil the driveline infact i would rebuild all the lines