BJ75 with 5th gear trouble

[Bragec]

Hi there! I recently bought my first Cruiser, a 87 Bj75, with a H55 gearbox.
But as soon i release the clutch in 5th gear, it jumps straight out of gear.
Anybody here knows what the problem might be? Could it be the same problem as this guy had?
https://forum.ih8mud.com/threads/my-h55-jumps-out-of-5th-gear.475849/

Cheers from Norway!

 

[roscoFJ73]

It could be a sign that 5th hasnt been used properly. Towing or driving uphill in 5th pushes 5th gear hard up against a bush wearing it out.This allows 5th gear to move around causing it to jump out of gear.
I had a 60 series that would come out of gear when you were coasting downhill caused by a weak detent spring , but I think your problem is different.

Yes , it could be the same as the owner in the link. If the gearbox/t/case has 300000 klms on it ,be prepared for a full rebuild.

 

[Aussie 25]

I think Rosco is right. You can replace the pices to fix it without taking the box out. Just pull the t/case off and 5th exection off . Replace the 5th gear pice ,setector hub, detent spring [2] and locking keys [3]. But if the box has a lot of km on it ,it may pay to rebuild it and the t/casr also.