Installed new guibo now has vibration in driveshaft

Everything is fine. Without a driveshaft installed, the ouyput shaft of the trans will be loose and floppy. This is because the tight splines that connect the output shaft of the trans to the driveshaft, are made for the driveshaft to be installed.

The driveshaft slips tightly into a bearing inside the tranmission, and the driveshaft controls movement.

So, without a driveshaft installed, the output shaft of the trans will flop around. Once the driveshaft is installed, all should be tight and well.

So what do you do? Just install the driveshaft, leave it up on jacks, add your fluids and fire it off.

Run the trans through ALL gears while holding brakes tight, then recheck fluids. Once this is well, run it up on jacks and check for all gears and no leaks.

On jacks it will wobble or vibrate, but just finish the job and teat drive it.

Chances are that bothing is wrong.

Good Luck!!@

(1st) Check the engine and gearbox mountings.

(2nd) Check the brake-disc's if it needs to be sceemed.

The vibration is caused by worn driveshaft parts. The BMW driveshaft is flexible and has a rubber universal joint called a Guibo and a center support bearing that must be replaced when worn or old. The parts are about $100 (60 for the universal joint and about 35 for the support if you buy them from autopartswarehouse.com )and the labor is about $250 at a good independent repair shop.

those rubber mounts on the driveshaft.....replacement them. sometimes called guibo joints.

You will need to check things logically. Run the truck in the air and note where the vibration is at. Take the wheels OFF and put a few lug nuts to hold the rotors on, take the truck to 45mph or whatever the vibration is the worst. is it still there? if its gone, check wheels/ tires. if its still there, check rotors, axles. A drive shaft will make a rapid vibration at low speeds since it turns 3 to 4 times faster than the wheels. does it vibrate on or off the gas? Can you power through the vibration like go 60 and then coast back through? You have replaced a lot of parts that would not cause vibrations. Are you just changing parts willy nilly or is someone actually checking and verifying that these parts really bad?

Causes for juddering may be: 1) Uneven idle, but on a four cylinder car, you would notice the engine shaking if that were the case. 2) Failing guibo, which is the rubber cushion between the transmission and the driveshaft, but those rarely fail on 318s. That is a common M3 problem. 3) Non-OEM clutch facing that does not engage smoothly. Usually worse when cold or damp. Has your clutch been replaced? 4) Heat damage to the flywheel. This is the worst-case scenario because the flywheel for this car cannot be machined and a new one costs about $1000. If that is the case, I would just put up with it.

I just had the same issue with a 1999 2500HD and the vibration got worse above 50 mph. Problem was resolved with a new driveshaft. Old one (aluminum) was badly out of true and the problem didn't really occur until I had the U joints changed - then bent driveshaft vibration was noticeable. New driveshaft resolved issue.

they might have the transmission not lined up properly causing the drive shaft to be at an angle from the rear axle

check condition of suspension bushings,check rotors for trueness.check for loss or worn suspension components

that could cause the vibration but I have also seen brand new tires out of the blue seperate or through wheel weights and cause dashes to vibrate so I would eliminate that completly from the equation.It wont cost you anything if where you had them installed does lifetime balanceing.