4.1 Open diff

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Ianb
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Post Fri Oct 04, 2013 3:39 pm

Does anyone know if there's any market for a welded 4.1 diff (small case ) cause i'm running a scrapper in tomorrow and am thinking of chucking it in but I've just thought it's an unusual ratio so thought i'd ask before throwing it in the boot. If it's worth selling I'll do a proper for sale ad & pics next week
Grrrmachine
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Post Fri Oct 04, 2013 3:40 pm

4.1 is perfect for a 4-pot engine; it's what the 318iS came with as standard.
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Ianb
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Post Fri Oct 04, 2013 4:38 pm

Thanks Grr, probably loads out there so she's getting weighed. I hate welded diffs
B7
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Post Fri Oct 04, 2013 6:41 pm

What about an open 4:45 small case? Not welded.

Whats the market for them like?
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GB69
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Post Fri Oct 04, 2013 6:55 pm

I might of took it as a spare if it was local, with driveshafts?


Any difference in lengths of driveshafts between small case and medium case?


Not sure what ratio is in mine, Realoem dont say. 1990 318is 2 door.
age
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Post Sat Oct 05, 2013 12:17 pm

B7 wrote:What about an open 4:45 small case? Not welded.

Whats the market for them like?
theres a market for it alright, can give an m40 a bit of pep and commen enough for drift cars.
50 quid all day anyway
M40 rightness if you can get to 6000rpm noone can hear your tappets
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Post Sat Oct 05, 2013 12:37 pm

GB69 wrote:

Any difference in lengths of driveshafts between small case and medium case?
No.

The difference in width is compansated for by output flanges with different thickness.