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98 R34 FS5W71C 5 speed to FS5R30A 5 speed swap

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trying to gather as much info I can on swapping a 5 speed on a 1998 R34 25gt skyline.

planning on swapping trans from stock 25GT FS5W71C 5 speed to the GTT FS5R30A 5 speed


so far I have researched and it tells me that pretty easy swap,

what i will need/to do:

swap the trans install new FS5R30A , a new SPec brand stage 1 or 2 clutch setup as the stock trans used a push type and GTT trans uses a pull type/ is this as easy as disconnecting the line to slave cylinder and reconnecting to a pull type slave cylinder, or will pedal assembly /hose line etc. or other have to be altered/changed?

I read the trans mount cross member is different, but what is different with cross member? something that can be welded/by modifying a stock 25GT trans cross member?

the drive shaft is shorter then the 25gt one, so I will shorten or source a good used GTT drive shaft

and install a GTT shifter , all else will line up, connect etc.


is this all correct? is there something I am missing?

like is the flywheel compatible?

speedo compatible?




Edited by JC71

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