http://www.bokchoys.com/differential/GearRatios_E46.htm
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I don't know if they're still doing it, but the first post in the other LSD thread by MFactory (here) said they charge an additional $450 to install the new LSD in a pumpkin they have in stock, then they add a $500 core charge which is refunded when you send them your old pumpkin. This is the route I'm planning to take... I just hope they're still in the $450 range.
Honestly that’s a good deal. I watched a couple videos and it just seems like a lot of work. Not necessarily difficult, but a solid day’s work. And if you don’t have things like a vise on a workbench you’d have to get creative. Plus they’d presumably double check things like the backlash, etc.
anyone have a contact at MFactory? I want to shoot them a few questions.
Backlash, preload etc. is really important and easy to mess up. I’ve seen a melted ring and pinion. Looked like it was made of clay...
Nothing that a BFH can’t fix :)