80 series gearbox

Submitted: Friday, Jun 09, 2006 at 12:55
ThreadID: 34765 Views:1517 Replies:10 FollowUps:4
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Friends have just bought a 80 series dx 11/94 cruiser and are having trouble selecting second gear. No noise from gearbox, easy selection going up through gears and going back down until going from 3rd to 2nd. Can be engaged if speed is at or below 20 km/h.Could it be oil level or type of oil in box?Any other thoughts?

Thanks Cooper127
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Reply By: Moose - Friday, Jun 09, 2006 at 13:12

Friday, Jun 09, 2006 at 13:12
If you do a search you'll find many posts on this. Stiff shift into 2nd is an 80 feature. Changing oil may help, depending on how bad it is. I've had 2 80s and both were same. Used a few different oils but never totally solved it - just learned to live with it. Double de-clutching should help too (if they know how to do it).
AnswerID: 177652

Reply By: ThePunter - Friday, Jun 09, 2006 at 13:48

Friday, Jun 09, 2006 at 13:48
I have searched this site before and a lot of people have recommended Castrol VMX-M.

VMX-M

I have actually bought some for my LC105 but I have not put it in yet.

David.
AnswerID: 177657

Follow Up By: Member - Nick (Kununurra) - Friday, Jun 09, 2006 at 19:35

Friday, Jun 09, 2006 at 19:35
Use it in our 105 and works a treat.Especially cold shift.
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FollowupID: 433853

Reply By: Member- Rox (WA) - Friday, Jun 09, 2006 at 14:53

Friday, Jun 09, 2006 at 14:53
Sincromesh worn out. mine replaced & has gone again after 50,000kms. I am told the shaft is too hard? Can't believe they didn't replace the shaft if it's a problem. Not going to spend $2000? again if I can double de clutch.

Hope this helps.
AnswerID: 177667

Follow Up By: Member - Bware (Tweed Valley) - Friday, Jun 09, 2006 at 18:02

Friday, Jun 09, 2006 at 18:02
Double de clutch or Count de Money, eh?
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FollowupID: 433845

Reply By: Howard T - Friday, Jun 09, 2006 at 15:27

Friday, Jun 09, 2006 at 15:27
My series 80 is a 12/94 and is exactly the same. started at 40K. Using a different oil and problem has lessened. Mines ok when its warmed up, only when its cold its seems to be a problem.

Howard
AnswerID: 177670

Reply By: rod2101 - Friday, Jun 09, 2006 at 16:49

Friday, Jun 09, 2006 at 16:49
castrol vmx or vmx-m (hard to get) worked wonders with my 105 gearbox !
Regards Rod
AnswerID: 177688

Reply By: Mudness - Friday, Jun 09, 2006 at 18:05

Friday, Jun 09, 2006 at 18:05
G'day, How many Ks on the truck?
AnswerID: 177708

Follow Up By: cooper127 - Friday, Jun 09, 2006 at 19:49

Friday, Jun 09, 2006 at 19:49
Has done 178000 kms .Had a look in Repco and all I can find is VMW 80 manual. Is this the vmx or vmx-m that the last posts have said?
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FollowupID: 433859

Reply By: age - Friday, Jun 09, 2006 at 20:47

Friday, Jun 09, 2006 at 20:47
I recently sold my 1990 80 series owned from new. In first 3 years of life gearbox came out of that vehicle 4 times to try and fix same problem - was never really successful until Toyota recommended using Castrol Syntrax oil in box. Worked a treat and never had any real trouble with it for the next 13 years doing heaps of beach work and towing. Used to change the gear oil once a year - never appeared to be contaminated with metal etc. Syntrax is expensive but saved another useless gear box overhaul.

Cheers

Age
AnswerID: 177736

Follow Up By: warthog - Friday, Jun 09, 2006 at 21:58

Friday, Jun 09, 2006 at 21:58
Same problem in our gu patrol. Tried nulon g70 with 75w90 mineral oil. No good. Mechanic put semi synth 75w90 and oil exteme additive, 1st to 2nd a little better but 4th gear became a problem. The gear box has been out before we got the vehicle to presumably fix the 5th gear fault this model had and I don't believe the put it back together properly, as far as the syncro goes on 4th gear. The slippery additives didn't make syncro function any better so I put syntrax in and this has made 1st to 2nd cold changes much better, though I think syncro on 4th is pucked as this needs a very slow change or double clutching going up the box and definitely double clutching 5th to 4th.
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FollowupID: 433878

Reply By: FZJ 80 - Friday, Jun 09, 2006 at 21:36

Friday, Jun 09, 2006 at 21:36
Cooper.

I have a 94 80 series and had same problem when cold,summer was ok but winter it was shocking. Bought Synforce all terrain 80 for the gearbox and problem solved. I was sceptical but it is fantastic. Synforce claim that it reduces "Shift Baulk" and it certainly does in my rig.

Regards

Greg
AnswerID: 177745

Reply By: Al-one - Saturday, Jun 10, 2006 at 20:10

Saturday, Jun 10, 2006 at 20:10
I had a problem with my second hand 80 series. I would refuse to go into 1st from time to time. Double de-clutching made no difference. Tried all the oils to no avail. Had the box done up and the problem was flat spots on the fine teeth of a brass ring thingy (tech talk) that was part of the synromesh. It's ok now.
Cheers,
Al-one
AnswerID: 177860

Reply By: Hairy - Monday, Jun 12, 2006 at 13:15

Monday, Jun 12, 2006 at 13:15
Mine is the same. You will get used to it!
AnswerID: 178065

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