Rear Differential Ring Gear Backlash
Thread Starter
Senior Member
Joined: Apr 2010
Posts: 394
Likes: 155
2013 E63 P30, 2010 GL550
Rear Differential Ring Gear Backlash
I am working on the rear differential upgrade. The resulting ring gear backlash clocks in at 0.00375 in. Can anyone confirm this backlash is acceptable? From various unverified sources, the backlash needs to be 0.004-0.006 in. I am ready to move forward, but the measurement gave me a pause. Please chime in.
Thread Starter
Senior Member
Joined: Apr 2010
Posts: 394
Likes: 155
2013 E63 P30, 2010 GL550
I know it is not the simplest DIY, but the motivation is present, and so it goes... 
The original diff is out and the upgrade is in, but I ran into the backlash measurement that stopped my progress. Look for informed opinions.
The original diff is out and the upgrade is in, but I ran into the backlash measurement that stopped my progress. Look for informed opinions.
