Getrag 260/6 overdrive 5 speed (1988)

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Maxim_d

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Hello,

Simple question.
Does this fit to our E9 M30 block and can I use it?
It is a one piece gearbox.
Bell housing does not come of.

Thanks,
Maxim.
 
No speedometer drive. You need a 265 transmission
 
Maxim, simple answer is no- per Don, get the G265 and consider having it gone through before putting it up. The other transmission you mention is easier to source but will not fit correctly. Anything can be done but much easier to go with what everyone else uses.

Good luck-
 
The long and winding road

I posted this info a little while back in a parts thread, I'll repost it here since it's appropriate. This still doesn't answer the question of whether this particular tranny will bolt up to an M30 however.

Originally Posted by Nicad
Just wondering if anyone has converted the speedometer to run electronically? Seems to me that would open up some new choices. I might be interested in a CR gearbox one day, but I see no need for an overdrive as 80MPH is the sweet spot on a 4 speed.
Click to expand...


While there are firms that will convert mechanical speedos to electronic, it isn't cheap at $350 and the odometer will be a digital one. Not the look I want. A electrical signal must be provided from a newer differential or other means. More on that in a moment.

Abbott Enterprises speedometer company in Pine Bluff, AR has another solution. They have a device called Cable X that takes an electronic signal speed input and had a motor to drive the speedometer. They provide a 3' cable to fit your speedo and they recommend the Cable X box live under the hood with the cable as straight as possible.
If you have a newer differential, that signal can be used and the box can be calibrated for true speeds. If you don't have a newer differential, a Hall Effect sensor can be placed near the drive shaft and four magnets attached to the shaft to provide RPM signals to the Cable X box. Another alternative is a GPS box that will sense your speed and deliver a speed signal to the Cable X. It must have a view of the sky to work, I don't know if there is enough opening in the metal of the E9 dash to allow it to be under the dash and still get a good lock through the plastic. Of course, it would stop working in long tunnels.

The Cable X is $340, Magnet Hall Effect sensor is $125 and the GPS is $225. So it's not cheap, but it would open up some other transmissions for use as the available pool of good '81 and older 5 speed transmissions gets smaller and smaller. Of course, some later transmission can take the speedo drive so that helps, but that seems difficult to determine, most sellers don't know if that's possible.

Abbott Enterprises
901 West 4th Ave.
Pine Bluff, AR. 71601 USA
http://www.abbott-tach.com/

TOLL FREE: 1-800-643-5973 Phone: 870.535.4973 E-mail: [email protected]

Ian
1970 2800CS Chamonix waiting restoration in Austin

2005 X3 DD
1996 Z3 still living in the land of Aloha
 
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Let's be clear-
The 260/5 and 260/6 fit just fine to the block. But No speedo drive for either.
The 260/5 shift linkage mount is ok and the 260/6 mount is not ok for a coupe
If you had to use a 260 you would want the 260/5
That said- you wouldn't go looking for a 260 anyway. Because of the speedo problem.
 
Apropos of the above (admittedly a while ago) I was made aware of this GPS speedo.

https://www.classicautoinnovations.com/classic

Given this, and the fact that I have an E34 Alpina manual transmission lying around which seems to have the same ratios as the getrag 265 overdrive, this seems like an economic solution. Is there anything that I need to be aware of in seeing whether this 260 transmission will fit?

It would be an elegant solution for me if this was simple, but I have found that these things rarely are.

I don't know whether mine is the 260/6 or the 5. I have my existing linkage so might that fit?
 
http://metricmechanic.com/transmissions/


"Like the 260, the shift forks are aluminum and wear out prematurely. Also, like the late 260, the teeth on the operating sleeve and gear engagement teeth on 2nd and 3rd gear are asymmetrical. This design makes for weaker up shifts, causing the synchronizers to grind in 2nd and/or 3rd, but does promote better synchronization when down shifting. The gear set layout looks similar to a 265 Getrag"
 
Just get a 265. Even if you get a later one without speedo, you can retrofit or GPS your current speedo
 
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Rek said:
Apropos of the above (admittedly a while ago) I was made aware of this GPS speedo.

https://www.classicautoinnovations.com/classic

Given this, and the fact that I have an E34 Alpina manual transmission lying around which seems to have the same ratios as the getrag 265 overdrive, this seems like an economic solution. Is there anything that I need to be aware of in seeing whether this 260 transmission will fit?

It would be an elegant solution for me if this was simple, but I have found that these things rarely are.

I don't know whether mine is the 260/6 or the 5. I have my existing linkage so might that fit?
Click to expand...

Was this a B10 turbo? If so may I buy the valve cover? :D Anyway that car came with a G290.
 
teahead said:
Just get a 265. Even if you get a later one without speedo, you can retrofit or GPS your current speedo
Click to expand...
Thats good advice. As they are hard to find at an economic rate I might fit the 260 and wait until I find the 265.

Another technical question. Are the 265/6 ratios all the same for the different makes it was fitted to? CAn I buy one which came of a Jag or other make a fit the separate bellhousing for the BMW? There seem to be quite a few bell housings around.
 
IMO some of the conventional thinking on swaps is a bit conservative. If a quality 5 speed trans like the 260 bolts to your engine and fits in the tunnel then it is a potential swap candidate. You just have to evaluate the costs and work associated with the remaining issues like you would with any swap. The speedo issue can be solved.
 
'69 2800cs said:
IMO some of the conventional thinking on swaps is a bit conservative. If a quality 5 speed trans like the 260 bolts to your engine and fits in the tunnel then it is a potential swap candidate. You just have to evaluate the costs and work associated with the remaining issues like you would with any swap. The speedo issue can be solved.
Click to expand...

Good point. I could buy a 260 for $100. Add another $300 to rectify the speedo and you are still $600 below a decent G265. They are also found in newer vehicles so it is feasible to find a low mileage unit.
 
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