DRIVE LINE problems.......under the gun :x

[REO]

I replaced the rear u joints in my 88 325is (I know that almost all mech references said to replace whole rear shaft section (such as BMW, Bently manual etc.) , do to the fact that they are so hard to take out the old joints beacause they are "staked in" as the in the edge around each joint cap has been bent in to hold it in using a punch but i mangaged to buy one from a parts dealer so i decided to put it in) to be cheaper of course but i have ran into some trouble..... everything is back together and working fine except that between 90 to 110 kms there is an aggressive vibration imminating from the rear of the car and i am 99% sure its the joint, although it sounds like a tire related prblem i am very sure it isn't and it is shaft related, the only thing i can think of is my measurements are off thus causing the prob but its strange that it comes and goes a diff speed like it is doing so i think i am going to send my rear section of shaft away to be balanced but other then that i can think of what the cure is?...................

Has anyone done any d shaft work or u joints or any driveline work related to this or any same symptoms and most importantly any solutions for this head ache...?

thanks for the help

[e30Matt]

Re: DRIVE LINE problems.......under the gun :x

I replaced the rear u joints in my 88 325is (I know that almost all mech references said to replace whole rear shaft section (such as BMW, Bently manual etc.) , do to the fact that they are so hard to take out the old joints beacause they are "staked in" as the in the edge around each joint cap has been bent in to hold it in using a punch but i mangaged to buy one from a parts dealer so i decided to put it in) to be cheaper of course but i have ran into some trouble..... everything is back together and working fine except that between 90 to 110 kms there is an aggressive vibration imminating from the rear of the car and i am 99% sure its the joint, although it sounds like a tire related prblem i am very sure it isn't and it is shaft related, the only thing i can think of is my measurements are off thus causing the prob but its strange that it comes and goes a diff speed like it is doing so i think i am going to send my rear section of shaft away to be balanced but other then that i can think of what the cure is?...................

Has anyone done any d shaft work or u joints or any driveline work related to this or any same symptoms and most importantly any solutions for this head ache...?

thanks for the help

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That's the headache we need solutions to. :)

[REO]

any other bright ideas

[e30Matt]

Did you separate the driveshaft at any point? If so, you need to get it rebalanced. That may be the source of your problem.