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4spd Auto Conversion


Aussie260z

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Was wondering if anyone knew about 4spd auto conversions,

Im sure i saw a faq on this website a while ago, but i cant seem to find it,

I have an 280zx and was thinking of installing a 4spd auto gearbox,

I have done some reading and it appears the gearbox from a 300c or earlier 300zx (with the vg30e engine) can be made to work in a 280zx,

Apparently its got the mechanical, not computer controlled lockup,

Anyone know how i can get this box this to fit?

Also - i have a 1986 VL Commodore with 4spd auto lying around, anyone know if this gearbox can be used in the 280zx?

I have been told that it can, with a change of bellhousing, but wasnt to certain if any other mods were required,

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I have done the swap in my zx turbo. I used an '83 maxima transmission that was rebuilt to turbo specs. Extra clutch for 2nd, valve body drilled for higher pressure.

http://www.zcar.com/articles/twheel/4spdauto/

'88 maxima shifter handle cut down and the shift plate dremeled to accept the square shift lever.

http://i30.photobucket.com/albums/c301/dlh2460/280zxt/ftm005.jpg

the brackets have been thrubolted with the tunnel sandwiched by 2 plates of steel.

http://i30.photobucket.com/albums/c301/dlh2460/280zxt/4spdauto.jpg

curved cross member or whatever you can fit there that will follow the tunnel at it's straightest portion. The brackets I made out of 2" x 3" square tubing then cut and drilled.

http://i30.photobucket.com/albums/c301/dlh2460/280zxt/4spdauto4.jpg

It is expensive, and not for the faint of heart. New exhaust, new drive shaft etc.

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Thanks for that mate, alot of great information there,

I think im just going to end up going with a 5spd manual, prefer to move away from the auto box,

Anyone know what is involved in sticking an RB20DET or SR20DET gearbox into my 280zx?

I know im going to need pedal box, slave & master cylinders and suitable connecting hose,

Maybe a shorten tailshaft, maybe modify the rear gearbox mount and i know i will have to swap over bellhousings,

Anyone know of a write-up of this conversion?

I guess any 5spd from an S13 model skyline or late 80's Skyline gearbox is what im after,

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I think a member here "Drunkenmaster" has done or is doing just that! I remember seeing some photos of the mods required. Do a bit of a search on him and see what you come up with. From memory he is in Victoria.

Jim.

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