Manual transmissions, and transfer cases.

[Mag71k5]

Hey all, I'm curious about what transfer cases came behind manual transmissions, H151/152F's, etc.

I figured they were mostly part time cases, but wanted to ask.

 

[AussieHJCruza]

HF2A full time case from the factory behind my H151 - AU market 1FZ truck

 

[DivByZero]

There's actually a surprising variety. Fundamentally there are three distinct transfer cases:
HF1A - Part time 4wd
HF2A - Full time 4wd
HF2AV - Full time 4wd with viscous coupler

It's more nuanced than that though, because the HF1A came in a few variations. There's the typical "pov pack" version which is all mechanical, IMO the best one. There's also a version that used a motor actuator on the transfer case to switch from H2 to H4 via a H4 switch on the dash, like the electronic centre differential lock on the HF2A. There's also a PTO (power take off) variation for the factory winch, with an extra gear internally, which goes to a third output shaft on the side of the transfer case, where a cover plate or missing cutout is present when not fitted. There's also variations on the internals - if the transfer case was behind an auto gearbox, it omits the synchro ring on the shift between high and low range. Manual boxes had the ring installed, although you can add it in if it's missing.

 

[Broski]

There's actually a surprising variety. Fundamentally there are three distinct transfer cases:
HF1A - Part time 4wd
HF2A - Full time 4wd
HF2AV - Full time 4wd with viscous coupler

It's more nuanced than that though, because the HF1A came in a few variations. There's the typical "pov pack" version which is all mechanical, IMO the best one. There's also a version that used a motor actuator on the transfer case to switch from H2 to H4 via a H4 switch on the dash, like the electronic centre differential lock on the HF2A. There's also a PTO (power take off) variation for the factory winch, with an extra gear internally, which goes to a third output shaft on the side of the transfer case, where a cover plate or missing cutout is present when not fitted. There's also variations on the internals - if the transfer case was behind an auto gearbox, it omits the synchro ring on the shift between high and low range. Manual boxes had the ring installed, although you can add it in if it's missing.

Great info!

 

[bug616]

No U.K. 80 was part time. All transfers were either HF2A or HF2AV, with most being the latter.

 

[MooseMichaels]

If anyone needs a nice HF2A, I have one. @Mag71k5 Not sure if you're seeking one.