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  #1  
Old 08-29-2016, 03:18 PM
A guy who likes to Benz
 
Join Date: May 2010
Location: DC Metro/Maryland
Posts: 11,304
Need longer driveshaft

My OM603 powered s123 needs a driveshaft I don't have. I was planning on using the stock one (1983 300TD) but it's about two inches too short (even when extending it). The one I pulled from the parts car (1987 300TD) is too long, about 1/2" when fully compressed.

Does anyone know if the front half of an SD (w126) driveshaft is longer than the D (w123)? Could I swap out the front section and get it balanced?

I'd rather not machine down the 87 driveshaft if I can get away it with as the center carrier is in a different position (i.e. needs fabrication to work).

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I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 111k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]
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  #2  
Old 08-30-2016, 03:05 PM
A guy who likes to Benz
 
Join Date: May 2010
Location: DC Metro/Maryland
Posts: 11,304
Does anyone know the length of an w126 300SD driveshaft? Overall and front section?
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Huius auctoritatis est, quod latine dolor facit me respice.

I recondition w123/w126/w124/w140/r107/r129/ steering boxes!


1984 300D "Elsa" odo reset 6/2011 111k
1983 300TD "Mitzi" ~268k OM603 powered
1995 E300 "Adelheid" 262k [Sold]
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  #3  
Old 08-30-2016, 05:49 PM
DeliveryValve's Avatar
Chairman of my Benz
 
Join Date: Jun 2006
Location: Central California
Posts: 4,157
I know the manual 240 font shaft is about 4 inches longer that the 300D. The auto 240d I think it longer also. But I am not clear how much. It might be worth checking into the auto 240d shaft to see if it will work. Or just cut down a manual 240d front shaft and balance the whole assembly.
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  #4  
Old 08-30-2016, 08:46 PM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 37,993
Its pretty reasonable to have one made up. Maybe $200 or so.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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