I see this too often

[butters]

Damn, now I need to look to make sure.. it's been a few thousand miles. This applies to the E36 giubos as well for swaps (also wow - never knew about the spelling and pronunciation of "jew-bo" based on its Italian designer).

I suppose the reasoning is that the rubber is beefed up in a pattern (looking above) to better support the loading from the trans bolts pulling against the driveshaft bolts in the driven direction.

[LJ851]

Lots of confused people here.

There is a three bolt flange on the trans and also on the driveshaft. With the giubo in between them, make sure the arrows pointing toward the driveshaft line up with the driveshaft flange ears and the arrows pointing towards the trans line up with the trans flange ears.

See how the giubo is not even all the way around? In between the bolt holes it thick, then thin, then thick, etc.

What you are doing is putting the thick sections in compression during acceleration as the trans flange twists the driveshaft.

[Cabriolet]

Lots of confused people here.

There is a three bolt flange on the trans and also on the driveshaft. With the giubo in between them, make sure the arrows pointing toward the driveshaft line up with the driveshaft flange ears and the arrows pointing towards the trans line up with the trans flange ears.

See how the giubo is not even all the way around? In between the bolt holes it thick, then thin, then thick, etc.

What you are doing is putting the thick sections in compression during acceleration as the trans flange twists the driveshaft.

good post.

[efficient]

i hate doing the guibo but now i think i should check it.

[nando]

Real OEM has issues. it also says that the 325i needs a 96mm flex disk, when really it is a 78mm disk

that's because it depends on the date of manufacturing. some do use the larger flex disks.

also, the ETK shows the proper orientation of them. I've put one in backwards by mistake - it was dead in less than 200 miles.

finally, beware of cheap Chinese clones. Real BMW parts do not have gigantic MADE IN GERMANY marks spray painted on the sides..

[JasonBates]

I just got one for my five speed swap, it came with an instilation guide.
Here is the PDF for it. I was a little unsure how to put it in till I saw this.

[delatlanta1281]

crap.
Now I am worried. I am positive I did it right, but I'm worried. Do 2002's have the same markings?

[LJ851]

crap.
Now I am worried. I am positive I did it right, but I'm worried. Do 2002's have the same markings?

No worries on the '02, giubo is symmetrical.

[slammin.e28]

I just threw that pile of poo poo out and bolted both 3 bolt flanges together.

...no but really, I always thought the arrows pointed towards the bolt head, and looking, I've been half wrong all along.

...and reading this, it sounds really dumb now.

[delatlanta1281]

No worries on the '02, giubo is symmetrical.

Damn, I knew that. You guys suck. I was all worried for nothing. Going to go flip my jeep now.

[butters]

I have a bit of a drivetrain buzz / vibration in the 3k-4k range or so, which is especially a problem because I mainly am driving on the highway not to mention it kills the driving experience.

I searched and came back to the giubo subject in may discussions, though at times the symptoms of topic are at lower speed where my car feels relatively smooth.

I only have a few thousand miles on my S50 swap - the motor and transmission are rebuilt, I used new standard rubber mounts everywhere and got the "OEM" giubo from Pelican, the driveshaft is out of the M3 with a new CSB, and goes to a 2.93lsd. Wheels are balanced and I have replaced the control arms and literally every piece of rubber in the suspension front and rear.

I inspected my giubo today :



On screen it might be tough to tell but, the arrow indicates my installation is wrong. Reading this thread I knew that I hadn't noticed or heard how do it right when initially doing the swap.

I haven't driven far and the rubber shows no signs of deterioration, only flash from manufacturing. I was expecting worse. I'm wondering if the flex disc might have just softened enough over time to reach a point where it allows resonance despite not being cracked.

I'm sure it won't last but I'll clock it correctly and give it a whirl, and report back. Fingers crossed I don't have to go and replace my driveshaft.

Also - is that left side trans mount busted? I might have to get the UUC cups..

[Cabriolet]

Butters. you are using the wrong nuts on the transmission. you will crack the flanges. get washers on there asap!
I have yet to see a giubo cause vibration issues when it wasnt torn up. even when installed backwards. i would guess either your CSB or u-joins are going bad.

[butters]

Butters. you are using the wrong nuts on the transmission. you will crack the flanges. get washers on there asap!
I have yet to see a giubo cause vibration issues when it wasnt torn up. even when installed backwards. i would guess either your CSB or u-joins are going bad.

I saw that as well, yikes! What am I looking for when I check the u-joints?

[Cabriolet]

I saw that as well, yikes! What am I looking for when I check the u-joints?

they should move freely but not lose at all. usually the back one dies first due to being exposed to more weather. if is binds or clunks and flops it's bad. also make sure the CSB was installed correctly, the right direction and pre-loaded forwards 5-8mm.

[Vivek]

Bump for useful