Getrag 240 vs. 260

[Cammsport 390]

Hi all,

Wondering if anyone has any real world expertise on these gearboxes. I have an E30 with a 240 in it at the moment and a 260 sitting in the shed. The ratios seem to be very similar so i think the only advantage would be the strength aspect. Has anyone actually had a look into the internals of these boxes? Is the 260 actually stronger? Is it worth pulling the 240 and replacing it with the 260?  

[zero 1162]

Kayne Barrie is the man to ask.

He knows these things inside out.

[nick496 268]

If this your m52 swapped e30, your getrag 260 is not going to be a bolt on replacement for your m40 getrag 240, as it will sit on an angle and require a little fab work for the transmission mount.

That may or may not factor into your question. 

[polley 916]

Ran a 240 behind a m50 for about 4 years no issue. Turbod said m50 400~hp and it lasted about another 2 years before it let go and stripped third gear (after taking it to night wars and thrashing it on the strip)

 

I think on a standard m50 the 240 should not give any issues unless you are exceptionally brutal on it. Have had the 240 next to the the 260.. the 260 is physically larger and heavier.

[Cammsport 390]

12 hours ago, nick496 said:

If this your m52 swapped e30, your getrag 260 is not going to be a bolt on replacement for your m40 getrag 240, as it will sit on an angle and require a little fab work for the transmission mount.

That may or may not factor into your question. 

That completely slipped my mind. 

[polley 916]

Not only that, driveshaft lengths are different between 240 and 260

[Cammsport 390]

Remembered that I had another G240 sitting under the workbench. Although its from an early M40 E36 I'm fairly sure it's the same as the G240 that came with my FL M40 E30. 

Thought I'd pull it out and have a comparison.

 

The G240 (mucky one on the left) weighs in wet at 33kgs and the G260 wet is 35kgs.

Mounting heoles with the gear selectors at the 12 o'clock position seem to be almost identical to the point where I can't see a difference in angle. Hard to show in pictures without a bit of parallax error. I know that there were different versions of the 260 box released, could this be compatible with the 24 valve engines? 

Regarding strength, I've sent Kayne Barrie a message to see if he could shed some light ?

12 minutes ago, polley said:

Not only that, driveshaft lengths are different between 240 and 260

Have both driveshafts. 

[nick496 268]

If the shifters were level in this photo, I've just taken the lines from the right gearbox, and matched at the upper starter bolt.

Rotated 10 degrees, and she's pretty close to matching up on the holes.

What you really want to look at is how level the top of the starter is in comparison.

Edited February 7, 2020 by nick496

[Cammsport 390]

2 hours ago, nick496 said:

If the shifters were level in this photo, I've just taken the lines from the right gearbox, and matched at the upper starter bolt.

Rotated 10 degrees, and she's pretty close to matching up on the holes.

What you really want to look at is how level the top of the starter is in comparison.

Thanks for that Nick! I see what you mean. The G240 stays in then. As @polley said, it should be strong enough. @polley was this turbo M50 in an e30? Either way, do you have a thread on the build? 

[polley 916]

Are you sure they are both 240's? I've never seen one like that without the webbing around it. 

 

Yeah I've got a old thread somewhere. Haven't updated it for a long time.

 

 

Unfortunately the pictures are dead.

Edited February 7, 2020 by polley