...........throttled gasser............engine is much more efficient with greater throttle opening.

I think I will give it a try. I can pull almost 30 out of it on cruise on long trips and my car responds to even small changes in terms of MPG. I drive 120 miles a day round trip to work, so I notice every little thing...Robert

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Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

The 3.07 is too short.

But, I wouldn't disregard a good 2.88 if you happen to come across one from an '85 W123 or W126. The 2.47 is better if you frequently cruise at 75 mph or above, however. Note that it won't climb much of a hill at that speed.

2.88:1 is a one year deal and I want a 500 rpm minimum reduction in engine rpm @ cruise. Once I leave my driveway, it's about 300 yards to the freeway. Once I get on the freeway, I don't lift off the throttle until I pull in the driveway at work. I have been here 10 years and worn out a couple of cars making that drive....Robert

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

Brian,

I sent you an email. Did you get it? Thanks

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1987 300SDL 314K mi, counting; #22 Head
1999 E300Turbo 405K original miles
1997 E320 180K mi (Son's)
2002 ML320 (Son's)
1998 S320 140K mi (Son's) sold
1985 300SD 311K mi
1984 300D 324K mi (killed by a hit-n-run turd)
*************************************

So, the input yoke is the only pitfall in this swap??? Seals are the same???? Use 116 axles????

Thanks...:-)

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Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

Hmmmm.....

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

Search through the parts tab above, looking up the seals for a W116 diff, the 2:88 for the W123/w126 85 and the 2:47 gassers.

see if the parts #`s are the same or different.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

If anyone needs a 2.47, I have one from an 84 Euro 500SEC which I believe to be an LSD that i am happy to part with. It should fit W116 and W126 cars.

I can ship but this fella is heavy. Somewhere in the region of 60lbs (guestimate) from 75229 if you guys what to get an idea of what it will cost to ship.

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With best regards

Al

How much you asking for it?????

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Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

I am getting ready to swap a 126 differential (2.47:1) into my 1978 300SD. I have read a lot of data on the forum, so I wanted to post this and be sure I am 'getting it' as they say.

I know the 116 yoke needs to be installed on the 126 differential. Easy enough with the correct socket and resetting the pinion bearing preload.

Axles:

From what I have read, the sealing surfaces on the 126 and 116 axles are the same. It is the OD of the seals that are different, so you would need a 126 specific axle seal to fit the differential, then simply use the 116 axles???

Differential mounts:

Pretty standard looking setup with large studs on top the differential and a single rear mount.

Are the mounts the same between the 116 and 126??? Or, do I need something different here???

Speedo:

No luck finding a speedo for this setup. I do, however, have a 107 speedo in stock that is factory calibrated for a 2.65:1 axle, so the error would be much smaller than running the 2.47:1 and the stock 3.07:1 speedo.

IIRC, the 107's used a 15" wheel, so the 205/70R/14 tires on my 116 would also factor into the equation.

I'm thinking this would come very close to reading correctly.

Thanks for your input....Robert

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

Any thoughts????

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

You are a pretty technically inclined guy bu you would have to take the diff in to a shop and have them set the preload-wouldn't you?

Make sure you get the preload spec from checking the differential with an inch pound torque wrench before removing the flange as shown at 2:08 into this video. http://www.youtube.com/watch?v=8APYO2sZyJU
Then make a note of it and after installing the new flange tighten the nut down to the same preload spec.

Yes with the seal, and 116 and 126 axles interchange.


You should be able to use either the 116 or 126 mount. You may have to flip it in order for it to work.


..[/QUOTE]

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1983 123.133 California
- GreaseCar Veg System

It's a standard tapered roller bearing. 8 to 10 in/lbs of preload is generally correct for this style of bearing. I will check the FSM, but it's easy to set....with the correct socket of course!!!!

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership