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Re: FAQ E28 Transmissions, an overview

Posted: Sep 13, 2016 1:21 AM
by Owndapwn
Mike W. wrote: [*]G260/6
  • Used on '86-'88 535’s and E34 535s, but they may not have the flywheel sensor holes drilled out. Identify it by the fins on the bottom of the transmission and non-removable case. Overdrive 5th.
[*]G265/6
  • Used on '82 528e and '85 535i. Also on '85 6/735, '80-'81 E12, '81-'82 6/733s and E30 M3s. Considered the strongest transmission available for E28’s. Is easily identified by a removable bell housing which allows use on M10, M20 and M30 engines, as long as the correct bell housing is used or reused. All except M3s have a sheet metal shifter support. It’s use in '85 M30 powered cars was reportedly dictated by the short life of the 260/5 in those cars. Overdrive 5th.
So, I have a 1986 535i. Production date 10/85.
Am I, in this situation, considered an '85 or '86?
RealOEM seems to suggest 260/6, but it also says the 260/6 was implemented "From 10/85," so that's close enough to be hopeful for.

Re: FAQ E28 Transmissions, an overview

Posted: Sep 13, 2016 1:34 AM
by Mike W.
Owndapwn wrote:
Mike W. wrote: [*]G260/6
  • Used on '86-'88 535’s and E34 535s, but they may not have the flywheel sensor holes drilled out. Identify it by the fins on the bottom of the transmission and non-removable case. Overdrive 5th.
[*]G265/6
  • Used on '82 528e and '85 535i. Also on '85 6/735, '80-'81 E12, '81-'82 6/733s and E30 M3s. Considered the strongest transmission available for E28’s. Is easily identified by a removable bell housing which allows use on M10, M20 and M30 engines, as long as the correct bell housing is used or reused. All except M3s have a sheet metal shifter support. It’s use in '85 M30 powered cars was reportedly dictated by the short life of the 260/5 in those cars. Overdrive 5th.
So, I have a 1986 535i. Production date 10/85.
Am I, in this situation, considered an '85 or '86?
RealOEM seems to suggest 260/6, but it also says the 260/6 was implemented "From 10/85," so that's close enough to be hopeful for.
I would strongly expect it to be a 260/6 given the 86 model year, but I can't guarantee it. But especially with a 30 year old car, crawl underneath and take a look.

Re: FAQ E28 Transmissions, an overview

Posted: Jan 17, 2017 8:07 AM
by 5timesturbo
I have a G260/6 in a 88 535is. Can I use a clutch kit designed for an 88 M5...!???

Re: FAQ E28 Transmissions, an overview

Posted: Mar 07, 2017 4:18 PM
by Karlkormann
Are all of the clutches and maintenance parts for the M30/Manual transmission the same?

I'm doing a manual swap on an 87' 535is. I understand this car, if equipped with a manual was a Getrag 260. I've sourced a 265 (out of an 85' 535i) from a wrecking yard along with the drive line, flywheel, etc.

Do the cluctch assemblies interchange as well as trans seals and shifter bushings between the 260 and the 265?
:cool:

Re: FAQ E28 Transmissions, an overview

Posted: Mar 07, 2017 5:44 PM
by 1st 5er
Karlkormann wrote:Are all of the clutches and maintenance parts for the M30/Manual transmission the same?

I'm doing a manual swap on an 87' 535is. I understand this car, if equipped with a manual was a Getrag 260. I've sourced a 265 (out of an 85' 535i) from a wrecking yard along with the drive line, flywheel, etc.

Do the cluctch assemblies interchange as well as trans seals and shifter bushings between the 260 and the 265?
:cool:
You should be good to go on everything else, but not 100% on the seals.

You'll need to source and weld in the rear console hanger,
or hack in a substitute.

Re: FAQ E28 Transmissions, an overview

Posted: Dec 31, 2017 12:53 AM
by LeiseyJr
Karlkormann wrote:Are all of the clutches and maintenance parts for the M30/Manual transmission the same?

I'm doing a manual swap on an 87' 535is. I understand this car, if equipped with a manual was a Getrag 260. I've sourced a 265 (out of an 85' 535i) from a wrecking yard along with the drive line, flywheel, etc.

Do the cluctch assemblies interchange as well as trans seals and shifter bushings between the 260 and the 265?
:cool:
If you are going from G260 —-> G265 you need the G265 specific bellhousing, crossmember, trans mounts, shifter assembly and D/S. This will all bolt up with no modication. Flywheel, clutch, slave cylinder, T/O bearing is the same. Trans seal, as far as shifter seal interchange the rest of the seals I am unsure. The shift bushings do not interchange as G265 uses early style console shifter, unless you get the E30 M3 adapter thing to adapt later style shifter stuff to work on G265. I reccomend just getting all the 265 stuff if possible.

Re: FAQ E28 Transmissions, an overview

Posted: Sep 11, 2018 5:04 PM
by harrypalmer
Could I fit my failing E28 1986 Getrag 260/6 with a E34 1990 Getrag 260/6?

The housing numbers for the 1990 E34 transmission are:
Side casing # 260.0.1302.92
Rear case # 260.0.1060.92
Any insights and help will be greatly appreciated. Thanks

-Jack

Re: FAQ E28 Transmissions, an overview

Posted: Sep 11, 2018 5:22 PM
by Nebraska_e28
harrypalmer wrote:Could I fit my failing E28 1986 Getrag 260/6 with a E34 1990 Getrag 260/6?

The housing numbers for the 1990 E34 transmission are:
Side casing # 260.0.1302.92
Rear case # 260.0.1060.92
Any insights and help will be greatly appreciated. Thanks

-Jack
The short answer is yes. But this question would be better posted in a separate thread.

Re: FAQ E28 Transmissions, an overview

Posted: Sep 11, 2018 7:08 PM
by harrypalmer
Nebraska_e28 wrote:
harrypalmer wrote:Could I fit my failing E28 1986 Getrag 260/6 with a E34 1990 Getrag 260/6?

The housing numbers for the 1990 E34 transmission are:
Side casing # 260.0.1302.92
Rear case # 260.0.1060.92
Any insights and help will be greatly appreciated. Thanks

-Jack
The short answer is yes. But this question would be better posted in a separate thread.
Well, first of all, thank you. This really helps me quite a lot. Secondly, it seemed appropriate to continue a thread on the same subject but I will do as you suggest and actually I did a few minutes ago. Thank you once more.

Re: FAQ E28 Transmissions, an overview

Posted: Nov 21, 2018 11:15 PM
by Richardtoh
Could some wise man help me?

I have a 1984 RHD Alpina B9 3.5 e28.

Was told that Alpina authorized Sytner of UK, Great Britain, to convert stock RHD 528i e28 to B9 spec. This was in 1984, when the 535i and M5 were not released yet.

I want to know the gearbox in the car and hopefully the rear diff as well.

The gearbox is a 5 speed, with reverse next to 1st. 5th gear is "out on a limb" to the right and forward.

Gearbox has markings "262.0.0510 and 225 and 1.3." Bellhousing is separate as described in 1st post.

Appreciate is some folks here could advise.

Thanks.

Richard

Re: FAQ E28 Transmissions, an overview

Posted: Nov 22, 2018 1:01 AM
by Mike W.
Richardtoh wrote:Could some wise man help me?

I have a 1984 RHD Alpina B9 3.5 e28.

Was told that Alpina authorized Sytner of UK, Great Britain, to convert stock RHD 528i e28 to B9 spec. This was in 1984, when the 535i and M5 were not released yet.

I want to know the gearbox in the car and hopefully the rear diff as well.

The gearbox is a 5 speed, with reverse next to 1st. 5th gear is "out on a limb" to the right and forward.

Gearbox has markings "262.0.0510 and 225 and 1.3." Bellhousing is separate as described in 1st post.

Appreciate is some folks here could advise.

Thanks.

Richard
Sounds like a Getrag 265/6, the overdrive 5 speed.

Re: FAQ E28 Transmissions, an overview

Posted: Mar 04, 2022 12:07 AM
by Foonfer
Almost THIRTEEN YEARS after the 1st post by Mike, but came here to say:

This post would be orders of magnitude better if there was an indication or cross-reference to the stamped numbers on each transmission's casting.

For instance the recent (?) post by Richartoh referring to a trans with casting numbers "262.0.0510 and 225 and 1.3".

Here's another: What if the casting numbers are "262.0.0510.90 and 225 and 2.3" - ????

Re: FAQ E28 Transmissions, an overview

Posted: Mar 13, 2022 8:33 PM
by Mike W.
Foonfer wrote: Mar 04, 2022 12:07 AM Almost THIRTEEN YEARS after the 1st post by Mike, but came here to say:

This post would be orders of magnitude better if there was an indication or cross-reference to the stamped numbers on each transmission's casting.

For instance the recent (?) post by Richartoh referring to a trans with casting numbers "262.0.0510 and 225 and 1.3".

Here's another: What if the casting numbers are "262.0.0510.90 and 225 and 2.3" - ????
BMW may or may not have records of what serial number tranny went into what car, or what transmission it is, but if they do I have no access to that data. As far as the 262.0.0510.90 number, the .90 part at the end means it was revision .90. But the problem with the 262 numbers is they are casting number, and could apparently be machined to fit different variations or transmissions. 262 is a 4 speed, but 265's have a 262 casting number. Casting number, not part number. A 260/5 can fit either a M20 or M30 block, but one or the other, not both. Yes it's confusing which is why I tried to lay it all out.

Re: FAQ E28 Transmissions, an overview

Posted: Mar 16, 2022 5:11 PM
by leeeveretI
This is useful information

Re: FAQ E28 Transmissions, an overview

Posted: Oct 28, 2023 4:22 PM
by tig
This is what a G265/6 from a 1985 535i looks like:

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This is what a G260/5 from an M20 E30 or '87-88 528e (aluminum shift console) looks like:

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This is what a G260/6 from a 1987 535is looks like:

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Re: FAQ E28 Transmissions, an overview

Posted: Feb 06, 2024 10:18 AM
by iamcreepingdeath
The above pics need to be added to the first post.