->3.15 is a motorsport 4 clutch LSD, which is quite rare! Have ramps just like the LSDs found in M3s which contribute to different deceleration characteristics vs a regular 2 clutch LSD found on most BMWs of the era. (S40 S25 is stamped on all Motorsport LSDs)
Both fit e30s directly as a drop in upgrade with no other parts required. All are in great shape and the fluid was clean when drained. Both output flanges are included!
Shipping is about $80-90 to most states, I will NOT cover shipping. Please, don’t ask..SIGNATURE WILL BE REQUIRED.
Will post better pictures asap.. (Sorry
)
Prices are picked up..
3.15 $old
More info about the Motorsport diff from Thayer Motorsports..
Z3 Motorsport Diffs
What is this setup?
* A non-preloaded, 4-clutch setup with asymmetrical 50 / 65 degree ramps.
* Found in some early Z3 variants and some Z3Ms.
* Typically always are a 3.15 or 3.23 ratio. 3.23 ratio is more common.
How do I identify this differential?
* The code S40 / S25 is stamped after the serial number on the limited slip carrier inside the differential.
* These setups ALWAYS have oval openings on the LSD unit, but having an oval opening is only part of identifying the unit (e.g. there are standard setups with oval openings).
* The ramp nearest the ring gear will have a machined groove around the diameter (see: https://www.bimmerdiffs.com/collecti...pressure-ramps).
* The ramp angles will not form a v-shape like standard 45 / 45 degree ramps rather be a smoother transition (compare: https://www.bimmerdiffs.com/collecti...pressure-ramps to https://www.bimmerdiffs.com/collecti...pressure-ramps).
Both fit e30s directly as a drop in upgrade with no other parts required. All are in great shape and the fluid was clean when drained. Both output flanges are included!
Shipping is about $80-90 to most states, I will NOT cover shipping. Please, don’t ask..SIGNATURE WILL BE REQUIRED.
Will post better pictures asap.. (Sorry
)Prices are picked up..
3.15 $old
More info about the Motorsport diff from Thayer Motorsports..
Z3 Motorsport Diffs
What is this setup?
* A non-preloaded, 4-clutch setup with asymmetrical 50 / 65 degree ramps.
* Found in some early Z3 variants and some Z3Ms.
* Typically always are a 3.15 or 3.23 ratio. 3.23 ratio is more common.
How do I identify this differential?
* The code S40 / S25 is stamped after the serial number on the limited slip carrier inside the differential.
* These setups ALWAYS have oval openings on the LSD unit, but having an oval opening is only part of identifying the unit (e.g. there are standard setups with oval openings).
* The ramp nearest the ring gear will have a machined groove around the diameter (see: https://www.bimmerdiffs.com/collecti...pressure-ramps).
* The ramp angles will not form a v-shape like standard 45 / 45 degree ramps rather be a smoother transition (compare: https://www.bimmerdiffs.com/collecti...pressure-ramps to https://www.bimmerdiffs.com/collecti...pressure-ramps).
Attached Files
Comment