Quote:
Originally Posted by bmwheath
Also Scotty, was your lsd bolted or welded style? You have a 07'' correct? Large or small type diff housing?
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It was bolted. Can't remember the type, I actually bought and had it installed nearly 6 months ago. It clunked from the first day it went in, and it still clunks today.
Been waiting since December for the prototype unobtanium shim circlips.
Quote:
Originally Posted by MFactory
Just FYI, any BMW specialist worth their weight will already know how to modify the oem c-clip and aftermarket shims to correctly install an LSD. If you are DIY, the blame is not on us, however, we are the ONLY manufacturer to go out of our way to specifically machine these new c-clips and shims so that our customers don't have to do this themselves.
Your comment really doesn't go down too well, especially as we are the only company pro-actively helping you with this... or you can go out and spend several hundred dollars on a shim kit from the other BMW Specialists if you don't want to wait.
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The differential was installed by a reputable 4WD & Performance tuning shop who do a lot of differential jobs. They noted that most installs that require adjustment come supplied with an install kit.
They could not set backlash because the circlips cannot be "machined" down...
If you remove thickness from one clip, you need to add thickness to the opposite clip. If you don't, you're simply adding play between the shafts.
So... the product was sold as a drop-in, direct fitment for our cars. Yes, it does require an experienced installer, but how were they expected to have specialist BMW circlips on hand, when you know that they aren't sold individually by BMW?
It just seems like a poorly planned product that was sold as drop in replacement, when it wasn't. Basically it's source-it-yourself half kit.
Of all the BMW pieces we have to take out to fit the LSD, we're now being told we can't take them ALL out because the M-factory LSD doesn't include ALL new required replacements in their kit...
We have to re-use some BMW parts to fit the LSD.
Oh, but wait those OEM BMW parts won't fit either, so just machine them down...
Oh, but wait, you can't machine one side down, as you need to then increase the dimension on the other side, but you can't 'add' thickness by machining. So use a new circlip.
Oh, but wait, you actually need a thicker than OEM circlips for machining, but BMW don't sell individual differential parts, and due to the circlip design you can't just use a generic shim kit.
Now M-factory realises the oversight and promises to machine some circlips to solve the problem... but they promised that almost 5 months ago... for some circlips. I am usually very patient, but I can't understand why there is so much testing and development required for a circlip that should be basically identical to what is already there... just slightly thicker dimensions.
I feel like something doesn't add up, so yeah, I am a bit annoyed.