Gearbox problems

[4x4fun]

Just been out for a quick drive after cleaning down the engine and coming home the gearbox wouldn't let me into 3rd gear or 5th and gets stuck in 1st as well as 2nd and 4th being dodgy. Is my gearbox fudged? Its a 1996 gtb and its got 600km old 75w90 royal semi-synthetic gear oil in it.

[pl0x]

sounds fucked. keep driving it till it dies

[funkytown]

might have dropped a fork.

how many kms on the box?

 pl0x said:

sounds f***ed. keep driving it till it dies

a fork doesnt mean terminal damage fyi, but its terribly hard to diagnose over the net

[4x4fun]

140km. all the gears are back but dodgy.

Edit it does have a fairly worn selector bushing but i dont think that its bad enough to cause this.

might go get some new fuchs fully synthetic oil

[4x4fun]

Metal shavings in my new oil :'(

[pl0x]

yea true i don't really know much about gearboxes, just that they are $$$$ to fix and yours does not sound good

[4x4fun]

anyone got another gearbox to suit?

[4x4fun]

All better now ;D Fuchs gear oil fixed it.

On my personal blacklisted oils now:

Valvoline synthetic gearbox oil (lost gears in my old barina after a week after changing)

Royal semi-synthetic

[pl0x]

wow stoked! haha valvoline is whats in mine atm, wondering if its the cause of it being slightly notchy now

[4x4fun]

Could be. its still a lil notchy into 2nd now but heaps better than what it was and i can get it into all gears now lol. i have used fuchs oil in a few cars with good results as with castrol syntrax but that stuffs bloody expensive

[Ninja8)]

yeah Castrol 80W90 is what Subaru Recommends to use as Gbox oil i think...

[CUDDAS]

If that fails & you still dont want to open the box up, try redline lightweight shockproof gear oil -it's 75w / 140 & does the trick.

[pl0x]

 CUDDAS said:

If that fails & you still dont want to open the box up, try redline lightweight shockproof gear oil -it's 75w / 140 & does the trick.

wasn't a big fan of that tbh.

[4x4fun]

Well i believe if the boxes physically fudged theres no bringing it back doesnt matter what oil. the oil i have in it must have been causing the sector sliding part to bind to the shaft. if anything else goes wrong its getting a new box. How much is it likely to cost for a box to suit?