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+--- Thread: Late w126 brakes on w123 (/showthread.php?tid=138)
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RE: Late w126 brakes on w123 - atypicalguy - 05-09-2019
(01-12-2010, 10:08 AM)winmutt(01-12-2010, 01:08 AM)ForcedInduction The Gen-II brake upgrade is done! Thanks to Tom Judd for use of his shop and his time helping.
All the parts were from a 1990 420SEL. The backplates and calipers fit exactly to the 300D spindle and I bolted the rotors to the stock 300D hubs. The only major car change needed was the 15" wheels. It definitely stops much quicker and the rotors aren't nearly as hot after the 70mph "panic stop" test. Pictures will be added later, I left my camera in the 240 and Tom will e-mail the ones he took.
I am of the opinion that a better booster can be had for this setup. The later models had a doubled chamber looking booster.
Agree with that. I have done the gen 2 w126 calipers, rotors and backing plates on my 85 wagon. The stock booster is adequate, but more pedal pressure is required for sure than for the stock setup. Usually this has also to do with the master cylinder diameter as well as the booster amplification factor. On the w124, the double diaphragm booster will fit. I am not sure how much space there is on a w123 for the thicker booster. Swapping the master cylinder and booster from a w126 would be a good move, if it will fit. Not strictly necessary, however.
RE: Late w126 brakes on w123 - MTUPower - 09-09-2022
(05-28-2008, 01:37 PM)winmuttMTUPower Several weeks with the new brakes and I like them very much. Easy bolt on and well worth it.Yup today I got to use them for a real emergency brake for the first time, I am def doing this on wifes car.
wonder why my posts are gone?