Is it possible to put an overdrive transmission in a 1987 300 SDL? I just put a new (used) engine in it and my father-in-law has loves the car and wants it. He asked me, like I would know, if we could put overdrive tranny in it. Any thoughts or ideas? Also how do I know if the turbo is working? I did not have any problems with anything in the car until wifey ran it hot and you guys know the the rest. Thanks for any help.

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1987 300 SDL
Working on the engine!
It's up and running!

from what i hear if it moves the turbo is working.

Where would you get such an overdrive tranny to fit the OM603?

And, the engine really does benefit from the current speeds that it runs with the 2.88 gears. You might get some fuel economy benefits from the overdrive but, the benefits could never pay for the cost of the tranny and the installation.

Take it for a 0-60 time. If the turbo works, the time will be 11-12 seconds. If the turbo does not work, the time will be 18+ seconds.

Thanks, will test it Sunday!

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1987 300 SDL
Working on the engine!
It's up and running!

You can inve$tigate a 5-$peed tran$mi$$ion from a 97-99 E300. Don't forget the electronic$ and $pecial fluid that go with it.

Sixto
93 300SD 3.0

I'm tossing in a 2.47:1 into mine in the spring, I'll report with the results.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Mine moves right along at 3k at 70mph, smooth as silk. I wouldn't want another gear then it would have to downshift all the time.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Texas is pretty damned flat. Plus the 2.47:1 is perfect for in town driving in 3rd.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

My area is pretty damn hilly!

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

That just means you need more power.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Don't we all?

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Hi I read your a 300SDL owner and I need some help
new to forum and MB 300 SDL
PROBLEM is trans failed to stay in gear as I started up my driveway,quite steep and lost drive power,applied brakes tried to take off -no power.Shifted down to try another gear ,started to move but failed to move car,shifted to low and had power to get uo hill.
Tried car this AM
Took off on flat ground but as I started up a slight hill -drive failed 3rd failed 2nd worked again ? any ideas ,I like to have some answers before the mech tells me again total rebuild & open the check book for $3000

Check the fluid level, and als owhen was the last fluid/filter change done?

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Find a new mechanic.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Gear Venders sells a overdrive unit they call a gearsplitter . Im not sure if they make one for MB but here is their site
http://www.gearvendors.com/appguide.html