Box identification

[JGG1]

I just bought an M50 converted 320i with a slipping clutch, problem I now have is identifying which gearbox I have, are there any quick ways to find out? Part numbers etc?

Thanks all

[JGG1]

Well I got the box off today, it looks like an e36 box to me but the gearbox mount hadn't been modified so not 100%

Its definately dual mass flywheel though.

Numbers how they appear on the box are: BMW 1221 936 9 and 013 226
012 225 1221 899 9

Anybody shed any light on that so I can order a clutch?

[JGG1]

Only other numbers I can find are ZF 1053 401 097

[town325i]

The mount wont be moddified if an Is or an e36/e34 box has been used as the e30 mount fits straight on to the box. Its only when the M20 gearbox is used the mount needs butchering.

Take a picture of the cluch and flywheel then we should be able to tell you what clutch is being used

[DanThe]

If its a ZF box and dual mass flywheel you will have an M50 box, just measure the clutch plate diameter before ordering

[JGG1]

I rang euro under the assumption it was an M50 525i box and they only gave me one option, I will measure it though and double check in the morning before I order it! Thanks.

Few pictures just for reference...

[DanThe]

328i box is very similar, just a slightly larger bell housing, but the clutch/flywheel is bigger, its unlikely but you might have a 328i clutch etc

325/525 clutch is 228mm

[E30BeemerLad]

I have what I believe is a M50 flywheel, clutch & cover plate here for a M50 box.

Just measured the clutch plate and it is 227mm across. It is a Sachs and has a good amount of meat on it.

If this corresponds with your measurements then you are welcome to the clutch for £10 or the whole lot incl flywheel for £30 posted (due to the weight)

Let me know.

[E30BeemerLad]

Edit, Dan, does the above M50 shizzle fit within the E30 iS gearbox as that is what it was all bolted within when I got it. I could be wrong is the iS comes with a dual mass setup?

it was only when I had the M50 drama and the engine & box were separated I noticed the dual mass wrongness, so it then got replaced with M20 flywheel & clutch.

[DanThe]

Yeah it fits in an iS box easy

[JGG1]

Dan, thanks for that mate, just measured it and its 228mm should be straight forward ordering one.

BeemerLad, thanks for the offer mate but I need it tomorrow so I will have to get it from Euro.