Oh No Syncro problem

andrew muir

Club Member
Just confussed about what would be the diff ratio in my 260z 2+2 it was registered in mid 78 but I am led to belive it was manufactured in 77 any one confirm if this will have the higher geared 3.7 diff ratio or a lower geared 3.54??
 

andrew muir

Club Member
Final update on this.
Insalled a 280zx 2nd gen gearbox (thanks Johny) today.
Very easy to do with right tools.
260 2+2 gearbox speedo drive is not compatable I found out, so had to put in drive from new box and swap gears.
Also my gearstick from old box works great on new box seems about an inch shorter which is nice.
Had to stretch spring a little to ensure grear lever springs back to center.
Box feels very similar but has no cruntching isues hooray!!
Also box is quieter, (worn main bearing in old one)???
Gears feel great through the box although 5th seems geared for about 190mph now.
Anyone got a spare good 3.7 or 3.9 diff??:)
 
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