Differential Swap

[n8e30]

Hi guys!

I'm trying to see if it's at all possible to swap a differential from my 316i touring to that of a 325i convertible LSD unit without any major modification?
As far as some basic knowledge goes from looking online, it seems as though when changing these the obvious difference would be the case size. Would it then be a case of changing over the driveshafts alongside this? What other modifications would I have to do?

Any help would be much appreciated!

Thanks

[DanThe]

The only difference would be the length of the prop, which is easily adjusted by slackening the large collar nut near the centre mounting

[aimlessrock]

are the drive shafts not chunkier for a 6 pot ?

[paultv]

According to the Wiki - the drive shafts are the same - there's no mention of strength differences between the small and medium case diffs - the 188 being used on the M20B25 - so would the smaller case be man enough??

Paul

[DanThe]

are the drive shafts not chunkier for a 6 pot ?

For 325i yes but they fit exactly the same

[aimlessrock]

understood Dan.

[rix313]

Ahh the simplicity of an accurate answer and an OP getting the advice they need. Why this forum will always beat sh!ty facebook groups.

[martauto]

Ahh the simplicity of an accurate answer and an OP getting the advice they need. Why this forum will always beat sh!ty facebook groups.

Mart.

[n8e30]

Thank you all so much for the help! Going to give it a go in the next week or so, can always rely on the zone for quality quick advice!