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30ed32

Changing stub axles from 5x1 to 6x1

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I thought this would have been a simple question asked many times but I haven't been able to find anything.

I want to swap my r32 gtr rear diff out for a 3.69 ratio diff, I've found one but it has 5x1 axles (from a Y33).  Is it possible to swap the 6x1s from the gtr diff and put them into the y33 diff?

By the way this is a rwd car.

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2 hours ago, 30ed32 said:

I thought this would have been a simple question asked many times but I haven't been able to find anything.

I want to swap my r32 gtr rear diff out for a 3.69 ratio diff, I've found one but it has 5x1 axles (from a Y33).  Is it possible to swap the 6x1s from the gtr diff and put them into the y33 diff?

By the way this is a rwd car.

Hi 30ed32, unfortunately no you cannot unless you swap the centre in your Y33. The issue is the spline count on the stub axles. The 6x1 axles have 31 splines and your 5x1 Y33 axles will have 29 splines. 

Only way around this is to swap in a diff centre which has the same offset as yours (be careful with this because changing the gear ratio can sometimes alter the offset of the diff centre) but has the internal spline count of the 6x1 stub axles. 

 

Best bet in this case would be to grab the diff with the 3.69 ratio and swap your centre into this diff using the 6x1 stub axles. You need to know what you are doing because the differential needs to be setup correctly. Best bet would be to take it to a diff shop to get done. Otherwise if you are thinking of DIY, pm me and I can help walk you through. 

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