Getrag 265 questions... I'm confused

[dishwab]

Alright M30 experts, I've come across another head scratcher in my swap. I bought my M30B35 and assumed that the engine + trans were out of the same car. It appears though that I was incorrect.

The engine (as far as I can tell) is out of a 1990 535i, but after doing some research on the transmission serial number, this piece isn't.

I found a number of 262 0 0510 90 on the passenger side of the transmission, and the numbers 225 1.3 below it.

This leads me to believe that I actually have a Getrag 265, but I'm not sure what it would be out of. I've seen some stuff about dogleg this, close ratio that, but I don't know if any of it applies to me. Does anyone have any idea how I could figure out more information about this particular transmission? I didn't see any other part numbers and the numbers I posted above haven't been a ton of help.

It came out of a previously swapped E30, so it obviously fit in someone else's car, but I want to make sure my guibo, driveshaft, new clutch kit, etc. will all work with this box.

Here's a few images of the case for verification:





Thanks in advance to anyone who is able to offer some knowledge

[LJ851]

265's are easy to id. They are the only manual trans bmw used that has a removable bell housing. It is also the last 6 cyl gearbox to have a mech speedo output (or at least a provision for one). If it is dogleg, AKA close ratio, it will have a gear below reverse.

It's that simple.

[dishwab]

265's are easy to id. They are the only manual trans bmw used that has a removable bell housing. It is also the last 6 cyl gearbox to have a mech speedo output (or at least a provision for one). If it is dogleg, AKA close ratio, it will have a gear below reverse.

It's that simple.

Gotcha. Just bolted up my shifter and it is indeed a standard 5 speed pattern, not a dogleg. Is there a good way of ID'ing what year/model it may have come out of?

[Todd Black 88]

Every US spec M3, some 635, some early 7 series, all got the 265 gearbox. Even a 528e got it for one year only, with an m20 bellhousing.

[dishwab]

Yeah from what I've been able to find out, it was in e12/e28 cars as well as the 735i 635, etc. I'm now doubting whether or not my clutch kit will work with this transmission/flywheel in particular.

Does anyone know if an e34 clutch kit for a dual mass flywheel will work with this transmission? I can't confirm until I go home this evening, but I'm going to assume I currently have a single mass flywheel

I purchased this: http://www.fcpeuro.com/products/bmw-...em-21211223135 but I'm thinking that I may need to return it and purchase this instead: http://www.fcpeuro.com/products/bmw-...3-e32-061-9220

Or, should it not be an issue?

[dishwab]

Ok, so upon further inspection it looks like I have a single mass flywheel and clutch from an earlier 5, 6, or 7. I wasn't able to find any part numbers on either the clutch or flywheel, but it is the spring hub style clutch.

Can anyone wiser than I confirm that this is indeed single mass?







So, that said, I will need to return the e34 clutch kit and get one that fits the 535/635/735, etc., correct?

[E30_fiend]

I will need another picture of the transmission. Best would be from the bottom.

My guess is that tranny is a 260/5 or 260/6. If its a 260/6 it will have fins on the bottom running the length of the case. If its a 260/5, it will have sort of a waffle-like bottom on it.

The flywheel is in fact a single mass. You will need to measure the diameter of the flywheel on order to make sure what it came out of. My guess once again, is its a 533 flywheel which mill mean you can either run an e24/28 535/635/M5 or an e34 535/M5 clutch kit.


Taylor

[E30_fiend]

A little closer look at your pics I can see that there is a big stud with about a 17mm nut on it. If your tranny has four studs and nuts like that all the way aroundv(two on each side) then it is in fact a 265 2itj removable bell housing.

[dishwab]

I will need another picture of the transmission. Best would be from the bottom.

My guess is that tranny is a 260/5 or 260/6. If its a 260/6 it will have fins on the bottom running the length of the case. If its a 260/5, it will have sort of a waffle-like bottom on it.

The flywheel is in fact a single mass. You will need to measure the diameter of the flywheel on order to make sure what it came out of. My guess once again, is its a 533 flywheel which mill mean you can either run an e24/28 535/635/M5 or an e34 535/M5 clutch kit.


Taylor

Too lazy to go outside at the moment but after the above comments I checked it out and I'm fairly certain at this point its the 265/6 - there are definitely 4 sections and a removable bell housing.

Thanks for the flywheel verification. I'm thinking that I will need a different clutch kit - everything I've read today seems to say that the E34 kit I bought only works with a dual mass. Also, I compared the old clutch to that new one and the new one doesn't have the sprung hub.

[E30_fiend]

The new one not having a sprung hub doesn't mean it won't work. The most important thing is the diameter of the clutch and whether it will bolt to the flywheel.

This might make you feel a bit better and answer a few questions as well.

I have an e28 533i flywheel with an e34 M5 clutch. Its a proven setup.

Hope that makes you feel a bit better.


Taylor

[wildstoats]

This might be useful: http://www.m30swap.com/index.php?title=Transmission. If anyone would like to donate some images I would be happy to get a visual id section going.

[dishwab]

The new one not having a sprung hub doesn't mean it won't work. The most important thing is the diameter of the clutch and whether it will bolt to the flywheel.

This might make you feel a bit better and answer a few questions as well.

I have an e28 533i flywheel with an e34 M5 clutch. Its a proven setup.

Hope that makes you feel a bit better.

Taylor

Ah, well thats interesting. I was under the impression both had to be one or the other.

I measured everything and the clutch disc, pressure plate mounting surface, and flywheel mounting surface are all 240mm.

The overall flywheel diameter from edge to edge is 290mm

[dishwab]

This might be useful: http://www.m30swap.com/index.php?title=Transmission. If anyone would like to donate some images I would be happy to get a visual id section going.

Ah great, I'll definitely snap some photos of the transmission

[Alpina]

I have an e28 533i flywheel with an e34 M5 clutch. Its a proven setup.

I agree ,,, the E34 3.6 M5 clutch is one of the best