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Author: Subject: diff slightly off-center
Dillinger1977

posted on 31/7/05 at 06:05 PM Reply With Quote
diff slightly off-center

my differential is 10mm off-center (its very slightly towards the driver side.
i cant get it much further central without grinding a section out of the mounting bracket so im wondering if this would cause any problems or be okay as it is?

the main thing im thinking of is driveshaft lengths. but i noticed theres a little 'slide' in the driveshaft lengths so they could potentially cater for a small deviation in length.. is that right?

(edit - forgot to mention, its a sierra diff with bolt on driveshafts)

[Edited on 31/7/05 by Dillinger1977]





-Rog

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Mark18

posted on 31/7/05 at 08:16 PM Reply With Quote
I think you'll find one driveshaft is longer than the other to compensate this.

Mark





"I don't know what I may seem to the world. But as to myself I seem to have been only like a boy playing on the seashore and diverting myself now and then finding a smoother pebble or a prettier shell than the ordinary, whilst the great ocean of truth lay all undiscovered before me." - Isaac Newton

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JoelP

posted on 31/7/05 at 08:59 PM Reply With Quote
there is lots of play in the shafts anyway, and ISTR that prop bearings prefer to be slightly off centre. Should be fine.






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Mix

posted on 1/8/05 at 06:28 AM Reply With Quote
Are you sure it's not central?
The input flange should be central, the output flanges should not be, as said above this is compensated for by different length drive shafts.

Mick

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smart51

posted on 1/8/05 at 07:20 AM Reply With Quote
the bolt on half shafts have some play in their lengths but form memory on my VortX, they were pushed in most of the way. I have a sierra LSD with bolt on shafts and that went in centrally. The prop shaft flange should be central in the tunnel, not the output shafts to the car. 10mm should be OK over the length of your propshaft, especially as you get to choose where to mount the centre bearing.

[Edited on 1-8-2005 by smart51]

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Dillinger1977

posted on 1/8/05 at 08:27 AM Reply With Quote
quote:
Originally posted by Mix
Are you sure it's not central?
The input flange should be central, the output flanges should not be, as said above this is compensated for by different length drive shafts.

Mick


yep, its the actual big central flange on the diff thats 10mm off centre. i realise the diff ittsself is assymetrical and larger on one side which is why theres 2 different lengths of driveshaft.

was just wondering if 10mm would cause much problems.

i -could- get it down to 8mm or 6mm by removing 1 or 2 washers but i'd have to get the grinder out on the mounting bracket (the support 'tibs' on the diff foul the bracket). i dont think it'd ever be dead centre.





-Rog

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