280z 5 speed and 280zx 5 speed differences

[bbcountach]

I've got a '78 280z (4 speed), and I'm afraid that the transmission is on its way out. I was considering replacing it with a 5 speed, but I've heard mixed things on the early and later 5 speeds. What's the difference?

-Ben

[sblake01]

Basically, gear ratios.

[soundmasterg]

Are there any differences between the various 5 speeds as far as how they mount into the car and where the shifter sits? I've heard that some require cutting on a 240Z and others don't?

Greg

[Arne]

Are there any differences between the various 5 speeds as far as how they mount into the car and where the shifter sits? I've heard that some require cutting on a 240Z and others don't?

Greg

That's not a difference with the transmission, but with the car. Early 240Zs have a smaller opening in the transmission tunnel than do later Zs.

[soundmasterg]

Thats interesting Arne! Will a '72 240Z be able to adapt to a 5 speed transmission then without cutting or will a special or modified shift lever be required?

Greg

[nwcubsman]

Greg,

The swap will not require any cutting into the '72 and '73 240s. Only the series one cars '70 and early '71 need the opening expanded. I thought it was because the shifter on the tranny sat farther back. The 4 speeds in our cars match the 5 speeds.

[Arne]

Actually, I think all '71s need cutting. But '72 and '73 are fine.

[bluezcrazy]

Does anyone on here know how to tell if you have a 5 speed out of a 77-79, 80, or 81? I have one and I'm not sure what year it came out of? Are there any numbers that will help me? Thanx

Bryce

[ezzzzzzz]

I have a 11/70 build that I fitted with a late 5 speed and then a KA conversion. It had a type-A 5 speed when I acquired the car. The tunnel opening was never modified.

[ezzzzzzz]

nevermind...

Edited April 14, 2011 by ezzzzzzz

[Zed Head]

5th gear tells the story. Look at Post #2. Use white out to make a couple of marks and turn the input shaft one turn.

[bluezcrazy]

Thanx for your help Zed Head, didn't even think about that. Found it was from a 77-79, which is what I was hoping.

Bryce