Synchromesh DIY???

avengerpenguin · Jul 14, 2015

My gearbox has started to crunch into 3rd and 4th, 3rd being the worst, have changed the GB oil and no difference at all so was thinking it may be the synchromesh.

Has anyone changed synchro before, how difficult is it to do and where do I buy the new parts from?

Many thanks

vicszd30 · Jul 14, 2015

I know you can get bearing kits - interesting to find out if you can get syncro's??? There was a guy on here "tango" he works at a Nissan dealer- write him or post search his name and find his latest post.. I'd be interested to know too.. cheers vic

jonney · Jul 14, 2015

the safest bet would be to remove the gearbox and get a gearbox specialist to replace whats needed inside the cluster gear area.

tony d22 · Jul 14, 2015

Could be the dog toothed gears as well.
Might be in for a rebuild.

tweak'e · Jul 14, 2015

whats it like when shifting when stationary ? all gars a bit sticky?
i wonder if spigot bearing is sticking.

gazza414 · Jul 14, 2015

I've changed the gearbox oil prob 4 or 5 times now..different brands of oil with the same spec all behave differently in my car..best so far has been Nulon full syn and Valv mineral oil.

some I couldnt get the car into 1st or 2nd gear whilst the car was moving

fzrr · Jul 15, 2015

Have you tried Nulon G70 additive yet? A couple tubes of that stuff smoothed out my gear shifts pretty good.

Once you've changed the gearbox oil I don't think you'll ever get it as smooth as it was from factory. Whatever oil they came with was magic!!

avengerpenguin · Jul 27, 2015

To be honest its pretty bad, really has to be forced into 3rd, have managed to find a second hand box so will be replacing this weekend all being well, adding a heavy duty clutch at the same time

Hatchy · Jul 27, 2015

Fill with dex 3 and report back.

gazza414 · Jul 28, 2015

There's alot to be said for Auto trans Oil

avengerpenguin · Jul 29, 2015

Can atf actually make that much difference?

Hatchy · Jul 29, 2015

Yep. Give it a go if it's still no good then look to rebuild. $500 for bearing kits the $80 a synchro

avengerpenguin · Jul 30, 2015

Hatchy said:
Yep. Give it a go if it's still no good then look to rebuild. $500 for bearing kits the $80 a synchro

I have a spare box now so will chuck that in and take the old one apart to have a look, where can you buy the synchro gears from?

Rumpig · Jul 30, 2015

Try Nizzbits.com.au. I rebuilt the gearbox in my Kingswood many moons back and once they're apart all the bits look the same, take heaps of picks. I put a gear selector hub in backwards and had to pull it apart again.

Hatchy · Aug 1, 2015

Australian transmission components.

Synchromesh DIY???

Help Support Nissan Navara Forum:

avengerpenguin

Member

vicszd30

Member

jonney

Member

tony d22

Member

tweak'e

Moderator

gazza414

Member

fzrr

Member

avengerpenguin

Member

Hatchy

Member

gazza414

Member

avengerpenguin

Member

Hatchy

Member

avengerpenguin

Member

Rumpig

Member

Hatchy

Member

Similar threads

Latest posts

Synchromesh DIY???

Help Support Nissan Navara Forum:

Member

Member

Member

Member

Moderator

Member

Member

Member

Member

Member

Member

Member

Member

Member

Member

Similar threads

Join the conversation!

Join today and get all the highlights of this community direct to your inbox. It's FREE!