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Rear Propshaft SWB 300GD
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Posted 7/8/2007 11:06 AM
petermerle
Expert




Date registered: Apr 2006
Location: Cape Town ( deep south )
Vehicle(s): W460 *1, W123 *2, W124
Posts: 1315
1000
Rear Propshaft SWB 300GD

I'm trying to determine the original rear propshaft sizes for the SWB 300GD. I have two 300GD one before and one after a change in propshaft part no.
Dimensions are as follows - slip joint diameter , Tube diameter , Universal joint ( spider ) diameter
G1 ident #21345 45 mm, 63.5mm, 27mm
G2 ident #23245 56mm , 70mm, 31mm

As can be seen the G2 later shaft is much sturdier in construction ( weight 10.3 kg, vs 6.7kg for G1 )

I suspect G1's propshaft is not original and am trying to find out what the dimensions should be.

In the photo attached I aslo have new propshaft my KLEIM with dimensions of 48mm, 70mm, 30mm





(Propshafts 002.jpg)



Attachments
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Attachments Propshafts 002.jpg (237KB - 19 downloads)
#81556
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Author
Posted 7/8/2007 4:43 PM
kernel

Date registered: Dec 1899
Location:
Vehicle(s):
Re: Rear Propshaft SWB 300GD

The wider - the better.. some people change them with bigger for more strenght.
#81570 - in reply to #81556
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Author
Posted 7/8/2007 4:53 PM
dai
Expert




Date registered: Apr 2006
Location: Oregon USA
Vehicle(s): 300GD 300TD BMW R100RS Landini 80F
Posts: 2110
2000
Re: Rear Propshaft SWB 300GD

I agree with kernel, go with the biggest, widest, strongest, latest shaft available. I will attach an image of the OEM rear shaft out of my SWB 300GD 1985. It is around 565 mm long compressed fully. Tough enough.

-Dai



(rear-SWB-shaft.jpg)



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Attachments rear-SWB-shaft.jpg (46KB - 10 downloads)
#81571 - in reply to #81556
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Author
Posted 7/8/2007 8:53 PM
460332

Date registered: Apr 2006
Location: Europe
Vehicle(s):
500
Re: Rear Propshaft SWB 300GD

The axle with the bigger, thighter and stronger U-link is the original, these are expensive no DIN standard U-links.
Since you drive on the wrong side of the road you might only find millimeter threaded greaser nipples on one of those axles..??

The slimmer U-link with the lock ring on the needle bearing was not used on GW, those must be 3rd party parts.
Double check the arrows on the axle that is it not assambled 180 degree wrong before mounting.
Do not over grease the spline after mounting to avoid longitudinal pressure from the axle.






Edited by 460332 7/8/2007 8:54 PM
#81582 - in reply to #81556
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