240sx transmission

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Raxephon
Posts: 1910
Joined: Tue Jul 27, 2004 8:53 am
Car: '04 RX8...for the moment...

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Hi,I'm not a newbie but I thought if I post something it should be worth it,so...

I got out my 280zx transmission and my 240sx transmission earlier and started gettin dirty

The center section that holds the guts of the transmission together has the same bolt pattern on both the 240sx transmission and the 280zx transmission,(not the T5!).

The mainshaft bearing is the same between the two transmissions.

The countershaft (front)bearing on the 240sx gearbox must be swapped with the countershaft (front) bearing on the 280zx. (Unless you wanna have the bellhousing milled out for the 240sx countershaft bearing to fit in the 280zx bellhousing).

The holes in the bell housing for the shift forks must be filed out to accomodate the larger shift forks that the 240sx transmission has.(It took me about 2 hours with a rat tail file and 900 grit fine sandpaper to smooth it out).

I filed down a little at a time and checked the clearance on the shift forks before filing more. Once you have the clearance make sure to try shifting the transmission into every gear with the transmssion assembled to make sure you have enough clearance for the shift forks.

As far as it fitting in the car,well mines going in my sx to replace my zx transmission so I don't have any way of checking myself on whether or not the sx transmission will fit in a Z or ZX chassis.

I hope this helps anyone looking to swap transmissions.


User avatar
Raxephon
Posts: 1910
Joined: Tue Jul 27, 2004 8:53 am
Car: '04 RX8...for the moment...

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I forgot to mention that my 240sx driveshaft fits perfectly in my 280zx transmission so maybe the 280zx driveshaft will fit the 240sx transmission.

(I've been told that you have to trim the transmission collar but I haven't had a chance to verify this yet)


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