[F32Fleet]

Originally Posted by 435i_Phil

The final drive in the M3/M4 DCT diff is different than the ZF8 final drive (3.15). Diffsonline.com will build you a full pumpkin with the LSD already installed. This eliminates the headache of machining off the welded on ring gear from the OEM diff. There is a $400 core charge if you don't supply them with your OEM diff first. Honestly, I would go with a Wavetrac LSD, it's a helical LSD and doesn't use any wearing parts like clutches and Wavetrac says they are maintenance free, as they only use gears. There also other benefits of the Wavetrac design but I don't fully understand them. Honestly, diffsonline.com with a Wavetrac unit is the best bet.

Wavetrac, just like a clutch based LSD, won't act like an open differential if a drive wheel gets airborne.

Quaife will act like an open differential if a drive wheel gets airborne.

This really isn't a concern on the street though.

[joe330df30]

Hi does anyone have a lsd for my 330d f30 or how I can get one without spend ££££