e21 differential

[E21noob]

Hard to say but this doesn't look like an M10 245 to me.

Need to see the markings I mentioned.

[petroscf]

Shown it to a friend who said it is a 5 speed

[E21noob]

Could be a 5 speed. But it is not a 245.

Could be a 240.

[E21noob]

240 M10 5 speed overdrive ("late" models):

240/5.30-ME (part number 23001220421)
240/5.31-MF (part number 23001220423)

Recognised by:
- 2 piece aluminium case
- Mechanical speedo output
- Shift pattern: as 4 speed, 5th top right
- Markings should include "240" (follow by more numbers), six unidentified numbers, and the letters "ME", or "MF".
- smaller than the getrag 245, not much bigger than a getrag 242 4 speed.
- three bolt output flange 23211224091
- somewhat longer, requires shorter drive shaft part number 26111225470

[petroscf]

Giorgo any other pics of this?

[E21noob]

If it's a 240, the linkage mounting on the top leads me to think it may be a 240 from an E30. In that case, look out for the mechanical speedometer input. Also, it may be tricky to get the linkage all set up correctly.

[petroscf]

If it is from E30 it still does fit on the M10 right?
Except for the speedo, I think? Are there any solutions on this?

[giorgio2g]

Unfortunately i don't have any more photos. All i care is to be 5speed and to fit on my m10 engine. I asked the merchant to take more photos and sent me but he told me that he already had the gearbox shipped away.

[petroscf]

Did the last E21 models have different speedo like the E30 perhaps? So it might fit? does anyone know?

[E21noob]

No electronic speedos on E21s, but some early E30s had mechanical output on boxes.

Good luck

[petroscf]

Let's keep our fingers crossed then
Giorgo we are waiting for update here

[giorgio2g]

I hope that i am not naive for believing the merchant without having seen the gearbox live but only in a photo. :/

[Jeroen]

Fingers crossed indeed

[giorgio2g]

I received the gearbox. Should i post the photos here or start a new thread?

[petroscf]

I suggest you post them here, it is still a technical matter