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1983 Nissan 720 Kingcab 5 Speed (FS5W71) no 1st gear


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  • 3 months later...

Hi datzenmike,


I finally got up to my property to check the transmission. Since it's been a few weeks, I'll provide a refresher on the issue of concern. I have a 1983 Nissan 4X4 with a 5 speed. I was using it to pull out my other truck that got stuck and now I have no 1st gear. All other gears appear to be working fine. Recently I cranked up the truck and with the clutch out and the engine running, I was able to move the shifter into the 1st gear position without any grinding...etc. Nothing happened, the truck did not move at all when I did this. Any advise on what is the most likely issue?


Many Thanks,



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Has to be internal. Second gear is on the same shift rod and shift fork and both gears share the same synchronizer hub, so they must be working.


1/ I suppose the splines on the mainshaft may have stripped right at first gear location. That's a rare occurrence.

2/ First gear on the mainshaft has broken all the teeth off.

3/ Another is the first gear teeth are broken off the countershaft.


Drain the oil. See what falls out.

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Make sure you have it in 2-wheel drive.I cleaned my 4x4  shifter boot long ago and moved the shifter to clean the boot and didn't put in back into 2 wheel drive and started it and it wouldn't move.Finally I realized that I didn't put it back into 2 wheel drive.Do this and no one will steal it.

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