Yesterday - my left rear wheel came off and went 300 yards down the road. I pulled over immediately - after a few hours I got the car home. Looks like lugnuts buggered the threads as they exited the hub. I have extra lug nuts. Does anyone know if W126 and W123 hubs are the same? - as I know where a W123 parts car is sitting.

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72 350SL, 73 450SL, 82 300TD,84 300SD, 85 300D

first gen 126's shared many parts with the 123's, know with certainty that the trailing arms interchange. so likely the hub will also.

Wow, glad you or anyone else wasn't hurt!

1st Gen W126 (up to 1985) is the same as W123.

It will likely be easier to just swap the entire control arm. Plus, you won't be beating on an already used hub/wheel bearing.

Were there any symptoms noticed leading up to this??? Was it just a sudden catastrophic failure???

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'82 300TD
'84 300D OM617
Auto to 4spd Manual Swap 716.210
'85 300SD 2.88 Diff (Direct Swap)
W140 HD Rear Springs w/ bilstein shocks (SLS Delete)
'83 300SD Big Brake Booster Swap
Late model 240D Manual HVAC Swap
W124 Outside Temp Gauge
Aftermarket Keyless Entry

'84 300D RIP