A transmission friend of dad's was mentioning something about how the mercedes auto transmissions (6 bolt fluid pans) were the same as the transmissions in 928 Porsches (automatics)?

This sounded reasonably possible for me and I found some information:

Porsche 928:
" Engine mounted at front end, transmission mounted at rear end, both connected by a connecting pipe – transaxle system. Front mounted engine, clutch, torsional elastic drive shaft to transmission running in connecting tube, rear mounted transmission with final drive, double joint shafts, rear wheels"

Also here is some more info for further reading:
http://members.rennlist.com/pirtle/s4atrans.htm

Quote:
"Transmission

Most American 928s were delivered with a Mercedes-Benz automatic transmission for a luxury ride, only a small percentage were manual transmission cars."
(http://www.ropsley.org.uk/porsche_928.htm)

I am sorta curious if this is true becuase if so, our transmissions are being used in 219 HP V-8 cars. Give they are light porsche bodies but still, no more worries about blowing a transmission so easily...
(most of the info I saw was with the cars being sold becuase the tranny was going out...modulator problems? We know those! )

Just thought I would throw it out there...input? Am I insane? Thanks

(I did search the forum...) *puts on flame suit*

It seems so , but the older 4-bolt 722.1xx and 722.xx style. Note the applications in the following exploded parts diagram from Jaggi, a parts supplier:

http://www.jie.com/Mercedes/4_bolt_pan.htm

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

does this mean that a manual tranny from a 928 would bolt up to a mb diesel?

don

Yep, it's a MB auto from everything I've ever heard about it. I don't think they have the same internals as any of our cars..... it's been a long time since I read up on them however.

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1985 300D Turbo ~225k
2000 F350 (Powerstroke) 4X4, SWB, CC, SRW, 6spd ~148k
1999 International 4900, DT466e (250hp/660 ft/lbs), Allison MD3060 ~73k

The 928 transmissions are 95% Mercedes Benz; all the internal parts are the same. The case and tail assembly fit 928s only. The differential assembly is bolted to the tail. The stock MB transmissions can take a lot of abuse. The Porsche 928S4s have 316 ft lbs of torque, GTS 928s have 345 ft lbs. Some 928 owners have super charged engines turning 500 HP with stock transmission. 928supermodel.com! www.MURF928.com
transmission

does this mean that a manual tranny from a 928 would bolt up to a mb diesel?

Should I ask it a third time...? I can see some seriously good implications if so

No, don't believe it'll bolt up. It's a rear transmission (transaxle).

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1985 300D Turbo ~225k
2000 F350 (Powerstroke) 4X4, SWB, CC, SRW, 6spd ~148k
1999 International 4900, DT466e (250hp/660 ft/lbs), Allison MD3060 ~73k

The 5speed are rare bread even if you found one it will not fit or work in a MB. The 928 transmissions have a mono Tran’s differential setup one-piece. The corvette C5 and C4 drive train torque tube set up is a direct copy of the 928 Porsche.

Many have commented that the MB transmission wouldn't survive the increased output of a souped up diesel. I would think this information proves that theory wrong? A stock Porsche makes way more ponies than the diesel ever will, with the exception of the mutations produced by the Finnish "bombsquad" and their 603's..... RT

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When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K

Essentially why I posted this...was curious if it could handle our little tuning/adjustments
So it looks like it can...sure it will shorten the life...but thats all in the name of tinkering

The same boxes are used with 560/600 engines. Box can be reinforced with moderate costs to withstand 500hp/800Nm. This has been done to Finnish SuperTurbos. If properly reinforced the lifetime of the box will not be shortened.

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S320L -97

I did not know the Finnish guys were running autos! That makes me happy
What sort of reinforcements would this be?
Different clutch packs? Converter?
I know a lot of us are fearing our transmissions taking a dive and was curious if you have some further info/reading.
Thanks!

You could ask your question in Finnish Mersuforum English section. http://mersuforum.net/forum/viewforum.php?f=29

Jarkko S is the true wizard of MB Autoboxes and running his transmission shop in Finland.

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S320L -97

Yes, the 928 transaxle is buily by MB. No it will not work on an MB.

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1987 300TDT
1981 VW MKI Caddy 1.6 diesel, waiting on engine swap
1983 D-50 Power Ram 4x4 "Mitsubishi" 2.3 turbo diesel
assorted gas powered crap and motorcycles

RIP: 1984 300TDT, 1982 300TDT, 1984 190D 2.2, 1992 300D 2.5, 1987 300TDT, 1982 Maxima LD28, 1983 Maxima LD28, Isuzu C223 P'ups X3, 1983 Holiday Rambler 6.2 Banks turbo diesel, 1984 Winnebago LeSharo 2.1 TD, 1985 Allegro 6.5

Want to be disgusted? The Volvo guy's have a pretty much BOLT IN KIT for T5 conversions.. I want to bang my head into a wall..

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One more Radar Lover gone...
1982 VW Caddy diesel 406K 1.9L AAZ
1994 E320 195K