H150F 1hz (1 Viewer)

[mudgudgeon]

The only difference between an HDJ79/80/100, VDJ79 and HZJ80 shaft is the spline dimensions- internally they’re identical.

This is what I was wondering about.
I remember looking at part numbers previously because I'd seen new input shafts advertised as being for certain years.
All the synchro rings, hubs, bearings etc that are in contact with the input shaft also have unchanged part numbers throughout h15#

 

[damianhu]

They’re wrong, I have put an HZJ80 shaft in an H150f from a VDJ79. The only difference between an HDJ79/80/100, VDJ79 and HZJ80 shaft is the spline dimensions- internally they’re identical.

Frankly, If the shop is saying this Id go elsewhere as they clearly don’t know what they’re talking about

Appreciate the info mate, I’ll be going elsewhere for sure.

Any confirmation on whether my H1FA part time transfer will bolt straight up?

 

[wedgetail]

Appreciate the info mate, I’ll be going elsewhere for sure.

Any confirmation on whether my H1FA part time transfer will bolt straight up?

No worries. Yeah it’ll fit - all you’re basically doing is replacing the box with the same one only newer, they’re both H150f. The only issue is if they run a different output spline this would need swapping, I doubt it but as I haven’t done it I can’t confirm

 

[alicnorr8]

If you haven't already, try changing to a different gear oil first
$50 of oil can make a huge difference.

Castrol VMX-M is a good option, but there's others.
Same grade oil, but lighter weight ( 75 weight vs 85) and different add'm having the same problem with my '90 FJ80 with the H150f trans.. seems the

I wouldn't necessarily call it as masking up anything.
My old HDJ80 (H151) was a total PITA to down shift, I was double declutching constantly.
Changed out the oil and after a 1000k or so it was absolutely chalk and cheese.
Same deal in my current FZJ80 (H151). It was a bear to drive when I got it, changed the oil and it continued to improve for a few thousand Kms.

Castrol VMX-M was developed with Mitsubishi to solve an issue they had with synchros in a new series of gearboxes.

The H15# boxes are sensitive to what oil goes into them.

I'm having the same problem with my '90 FJ80 with a H150f trans.. seems the Castrol vmx-m is not available anymore, at least where I am.. what would be the next best options to try to find? Redline MT-90?

 

[Tyson801]

I'm having the same problem with my '90 FJ80 with a H150f trans.. seems the Castrol vmx-m is not available anymore, at least where I am.. what would be the next best options to try to find? Redline MT-90?

Sadly VMX-M does nothing. The only cure is a rebuild.

 

[mudgudgeon]

I'm having the same problem with my '90 FJ80 with a H150f trans.. seems the Castrol vmx-m is not available anymore, at least where I am.. what would be the next best options to try to find? Redline MT-90?

I put Redline MT90 in mine recently.
There was an immediate difference to shift feel compared to the Castrol VMX-M.

Have only put maybe 500km on the vehicle since chafing to Redlibe. Hoping it improves with a but more mileage on it.

VMX-M took a couple of thousands Km of use to work through the box and have full effect.

And, the VMX-M absolutely has made a positive difference in all the of my cruisers.
It's obviously not going to repair damaged parts, but it can have a big effect on shifting.

Sucks it's gone