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#1
08-03-2017, 10:14 AM
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300d vs 300sd axle shafts
Are the axle shafts on the 300d and the 300sd interchangeable (compatible)? Thanks for your time.
Paul 
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#2
08-03-2017, 10:52 AM
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Even 300D axle shafts are not interchangable across all models of the 300D. You need to be more specific about the exact models you are considering.
__________________
When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.
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#3
08-03-2017, 11:04 AM
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Quote:
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#4
08-03-2017, 02:21 PM
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Sorry about that...1983 300d sedan vs 1984 300sd
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#5
08-03-2017, 03:34 PM
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The easiest way to resolve this is a complete swap of differential and axles.
Some models have a narrow differential and therefore longer axles. Your 300SD will have a wider differential and shorter axles. (Currently, I have the 2.47 differential and Annular axles under my 300SD. These were taken from a 420SEL. This gives me lower rpm at cruise speeds, slightly better economy, and rides much quieter. Also, the CV joint itself is replaceable. The trade off, slightly less off-the-line performance. Which doesn't bother me in the slightest as I'm not in the habit of racing red light to red light.)
__________________
Sam 84 300SD 350K+ miles ( Blue Belle )
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#6
08-04-2017, 09:36 PM
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Aren't the W123 and W126 chassis different in rear wheel "track"? As in the bearing housings are wider apart, meaning no combo of diff or axle swapping will work?
__________________
1978 300D, 373,000km 617.912, 711.113 5 speed, 7.5mm superpump, HX30W turbo...many, many years in the making.... 1977 280> 300D - 500,000km+ (to be sold...) 1984 240TD>300TD 121,000 miles, *gone* 1977 250 parts car 1988 Toyota Corona 2.0D *gone* 1975 FJ45>HJ45 1981 200>240D (to be sold...) 1999 Hyundai Lantra 1.6 *gone* 1980s Lansing Bagnall FOER 5.2 Forklift (the Mk2 engine hoist) 2001 Holden Rodeo 4JB1T 2WD 
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#8
08-04-2017, 11:38 PM
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Quote:
Quote:
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#9
08-05-2017, 08:26 AM
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No.
The differentials are identical. The trailing arms are identical. The space between the two is wider on the SD . The SD has a HUGE inner can/joint on the axle. The w123 axles actually will fit in, and function on the sd... but it will not last long. No freaking way on earth to get SD axles into a w123.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#10
08-05-2017, 08:28 AM
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The wider 210mm diff from a gasser makes this even trickier...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!! 1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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