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Hi all, I am after info on a R31 Skyline Silhouette, what type of diff is used in these cars, I have been told elsewhere that they are a Borgwarner M78 diff 28 spline is this correct or are they different.

I am looking to buy one for a project but need to confirm theses details, the one I am looking at is a LSD.

Thanks for any help given

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Hi all, I am after info on a R31 Skyline Silhouette, what type of diff is used in these cars, I have been told elsewhere that they are a Borgwarner M78 diff 28 spline is this correct or are they different.

I am looking to buy one for a project but need to confirm theses details, the one I am looking at is a LSD.

Thanks for any help given

I need to confirm if they are 4 pin or only 2 pinion as well

Thanks

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https://www.sau.com.au/forums/topic/199196-diff-question/#findComment-3552378
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if it has drum brakes it is a borg warner 25 spline. if it has disc brakes chances are its probably 28 spline unless someone has done a brake conversion on it. the lsds are 4 pin whereas open centres i think are 2 pin

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Sorry for all the noob questions but as this is going into a different make of car I need to be sure of details

Can I clarify

R31 diffs = Borg warner m78 style Lsd 4 pinion 28 spline

R32 diffs = Borg warner m78 style Lsd 4 pinion 28 spline

R33 diffs = ?

And what ratios can I get in these 3 style diff?

In regards to a car that will max out at 250rwhp what is the stronger?

I have seen mention of the r33 having 4.4 ratio gear set, are these beneficial to the Drags compared to say 3.9 r 4.11's?

Again I apoligise for the questions but you guys on here have got a lot of good knowledge so thanks for any help received.

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