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U13 Bluebird & Altima => import specific => Topic started by: noynek on Mar 14, 2014, 10:53PM

Title: Can I Swap Sunny GTiR Rear Diff into U13 Attesa with Gtir Gearbox?
Post by: noynek on Mar 14, 2014, 10:53PM
Hi Guys

I'm new to the U13 Scene. I recently got a U13 Attesa that was "converted from auto to manual by Swapping in the GTiR Gearbox.

The Rear diff is still the original U13.( I checekd it myself)  I
U13 Atessa Parts are almost impossible to get here Caribbean. however I do have access to used JDM GtiR drivetrain parts.

The current centre diff in the car is screwed. As the car was previously driven considerably with the gear ratio mis match. I want to swap in a new GTiR gearbox but want to know if matching GTiR rear diff is a direct swap.

Any thoughts on this will be greatly appreciated.

Title: Re: Can I Swap Sunny GTiR Rear Diff into U13 Atessa with Gtir Gearbox?
Post by: Budgie on Mar 16, 2014, 12:14PM
Its not the rear diff and centre-diff that have to match, its the transfer case and rear diff ratios. I'm using a GtiR gearbox with an SR U12 transfer case and a u13 front diff with my original ca18det rear diff

EDIT - To clarify, the centre diff is located inside the gearbox casing, not the transfer case
Title: Re: Can I Swap Sunny GTiR Rear Diff into U13 Atessa with Gtir Gearbox?
Post by: noynek on Mar 16, 2014, 05:08PM
Its not the rear diff and centre-diff that have to match, its the transfer case and rear diff ratios. I'm using a GtiR gearbox with an SR U12 transfer case and a u13 front diff with my original ca18det rear diff

Budgie Sorry let me be a little clearer . . My car has the original U13 Rear diff installed along with GTiR gearbox and Transfer case. This was done by the previous owner. ( I know that the ratios are all wrong between GTiR transfer case and u13 Rear diff)  The centre diff is now worn. This is how I got the car.  I want to now set it up right.

I have another GtiR gearbox with GTiR Transfer case. I can get a GTiR rear diff from the local JDM parts yard.  I figured that I'd need the GTir Rear diff to match the GTiR transfer case but I'm not sure if the GTiR rear diff is a simple bolt on affair into the U13.  Would I need any other parts besides the GTiR diff? Maybe Axles?

I know the ideal is to get a U13 Transfer case but I'm working with what I have access to.
 

Thanks  
Title: Re: Can I Swap Sunny GTiR Rear Diff into U13 Attesa with Gtir Gearbox?
Post by: Budgie on Mar 17, 2014, 11:48AM
Ah... Yeah I think you can use a GTiR rear diff. Pretty sure they are the same as the U13, just different ratio's.

Laurence should be able to confirm.