[WIP] 1976 Land Cruiser FJ-55 to EVJ-55

[Bratitude]

Wow amazing find, I just picked up gs450h. I’ll start looking at some t case info and talk to my yota guys and see what else will mate

[Igor]

Oh - now I'm confused. I thought it was specifically the LS600HL transmission's output shaft (not the GS450H) that matches the Land Cruiser transfer case.

[HerbP]

Oh - now I'm confused. I thought it was specifically the LS600HL transmission's output shaft (not the GS450H) that matches the Land Cruiser transfer case.

That's correct. I think @Bratitude is confused.

Looking further at my HF1A / L110F (I think that's the correct model for the LS600HL transmission?) combo, the adapter may not be straight forward.

The HF1A has a protruding shaft with a seal surface....

which needs to go into the seal that is at the back of the L110F around the output shaft...

The seal protrudes around 4mm from the mounting face of the L110F. But the splines on the HF1A don't start until quite a ways in, so the HF1A and L110F need to be quite close together in order to have reasonable spline engagement, even if I were to extend the HF1A seal surface (like with a speedi sleeve or something). So I don't think I have more than .125 or maybe .250 for an adapter plate.

Ideas that have been suggested:

1) remove the Ravigneaux housing from the back of the L110F and machine off some of the mounting face to allow for an adapter plate to be welded to it.
2) weld the tcase to the transmission. The person who suggested this doesn't drink but is prone to sarcasm so hard to know whether he was serious.
3) give up on the idea of the HF1A and just get the LS600HL transfer case as @robertwa did.

I'm attracted to the idea of 2wd (for increased range) with part-time 4wd with 4hi/4lo so I'm reluctant to give up on the HF1A idea.

Here's a quick cardboard mockup of what an adapter would need to look like.

The photo is taken as if the transmission was lying with the output face down on top of the HF1A. The shafts are lined up.

[robertwa]

3) give up on the idea of the HF1A and just get the LS600HL transfer case as @robertwa did.

Just keep in mind that the LS600HL transfer case has a drivers side (left side)front output, so you would probably be looking at a new front axle

I have an extra transfer case here that I can take measurements for you if needed

[HerbP]

Just keep in mind that the LS600HL transfer case has a drivers side (left side)front output, so you would probably be looking at a new front axle

I have an extra transfer case here that I can take measurements for you if needed

Thanks. I realized that in the middle of the night last night too. My axles have PSPS (passenger side pumpkin syndrome) and that was another reason I wanted this HF1A. Plus the HF1A came off the same model of truck as the axles and frame came from.

[HerbP]

Not much to report. My spring TODO list is getting in the way of progress plus I'm having to learn how to hammer form some wheel arches but that's out of scope for this forum. I also bought the inverter from the same vehicle the transmission came from.

I did get the whole thing on an engine stand yesterday though, to check for driveshaft clearances and try to gain some clarity on an adapter plate. There's more detail over here: viewtopic.php?p=82032#p82032

[HerbP]

Wow.. A whole month has gone by and I still don't have a lot to report. Outdoor projects are still interfering with my day to day life and it's compounded by my neighbor wanting to aerosolize sawdust into the shop while I'm wanting to weld.

Got my Zombie board in the mail and got a throttle pedal from a Honda Fit. Other than that, I've managed a few more patch panels.

I also started on the wiring harness design. This is just the Zombieverter portion. I've also started on the t-case wiring and incorporating the original Toyota wiring.

[HerbP]

Got my Zombieverter from Ireland and an LS600H specific wiring harness from @Gregski's custom-wiring-harness service and case/connectors from Alibaba.

Need to verify my pinout above before I start crimping pins.

In the meantime, metalwork continues.