FJ40 3 Speed to 4 Speed Conversion with SBC

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I haven’t seen this anywhere so I thought I’d start a new thread. I have a 1973 FJ40 that had a Chevy 350 mounted to a Toyota 3 speed via a plate adapter. The transmission and transfer case were dumping out fluid so I removed them with the intentions of replacing with a GM SM465. I couldn’t ever get the output shaft tapped and then ended up cracking the output shaft trying to remove a broken tap so that didn’t work out. I’m going to have my rig on the road a little more so I just got an H42 transmission out of a 1977 truck. I also just got a Downey bellhousing/adapter from a fellow mud member. I was looking at it and it looks like I can just move the pivot ball to the drivers side and try my current clutch setup. Has anybody ever used their slave cylinder on the drivers side with a Downey bellhousing. All of the threads I have seen show moving to the passenger side but that’s because they didn’t previously have a 3 speed setup. My slave cylinder is mounted to the frame and the rod pushed a GM clutch fork. Looks like the throwout bearing was GM too. I bought a low profile pressure plate for the SM465 project that I think would work with this. If my angles and distance of the push rod of the slave cylinder on the drivers side will line up, can I do it this way? I have no problem moving stuff to the passenger side but it just looks like it might work how it already is.

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These pics are the Downey bellhousing. It’s made for the pivot ball to go either side just like the holes for the clutch fork. It looks like I could use the drivers side and bypass moving my slave cylinder.
 
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I took a look at how the slave cylinder was set up today and I’m going to be moving it to the passenger side. The previous owner went SBC to the 3 speed via a plate adapter. The way they set up the slave is to push a round bar that then pushes a welded on bracket and pushrod on that same bar to actuate the clutch fork. Does this look like a normal 3 speed clutch setup?

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I replaced gaskets and the seals I could get to in my 1977 4 speed transmission and transfer case. Hooked the Downey bellhousing up, attached the new throwout bearing and hub to the clutch fork.
Next step is making my slave cylinder bracket to attach to the bellhousing. Getting a lot closer to finally putting in a transmission that isn’t the 3 speed!

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Per @Downey instrux on an earlier thread, I have the throwout bearing clamped all the way back near the transmission so it won’t move while I position the new slave cylinder and bracket. I have the bracket as straight as I can get it pointing the slave pushrod at the clutch fork. I have the pushrod all the way in the cylinder in this position. Once I have the bracket mounted, I’ll unclamp the throwout bearing and let it move freely along the input shaft. Hopefully it will be in a good position in relation to the pressure plate.

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pb4ugo

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Back when when I ran a sbc and the stk 4 speed I was using the AA bellhousing, I think I 1st had the slave on the pass side, then yrs later I switched it to the drivers side. I don't recall why I switched, it may have been on a different 40. The AA B/H looks similar to yours, It mounted the slave on the b/h using 2 threaded bolt holes on the side. Idk, about downeys. Isnt mounting your slave side ways going to be difficult to bleed?
 
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Back when when I ran a sbc and the stk 4 speed I was using the AA bellhousing, I think I 1st had the slave on the pass side, then yrs later I switched it to the drivers side. I don't recall why I switched, it may have been on a different 40. The AA B/H looks similar to yours, It mounted the slave on the b/h using 2 threaded bolt holes on the side. Idk, about downeys. Isnt mounting your slave side ways going to be difficult to bleed?
I didn’t take that into account...hmmm...That’s the way I had seen others mount their slave cylinder on the Downey bellhousing. Will it not work this way? I appreciate the feedback.
 
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Got it put in the truck today. Still have to set up the slave and move the clutch line. I hope everything will work.

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