H55/Splitcase into 02/79-40 Series

[DomSmith]

Thanks Grant, that's the way I'm leaning. Need the occassional push in the right direction.

[Poser]

Originally Posted by DomSmith

Poser-

I'm getting ready to secure my brackets to the inside of the frame and wondered what the plan for removing the tranny would be for this rig? Is there room at the tranny hump to jack up the tranny to remove the center crossmember, or will the hump have to be removed? Obviously with a 73 I'd like to prevent removing the hump (seats, gas tank, etc.).

I'm considering welding one "L" bracket and welding tubing through the frame and bolting the second bracket to the frame to facilitate dropping the tranny in the future.

Any suggestions?

Originally Posted by grant5127

Myself,, weld the L on the left (driver) side.... the right one needs to be removable for ease in R&R trans/transfer......

Did you notice how it was installed?


The tube cross member, along with the gas tank (1979 40 series, 22 gallon external fuel tank) are preventing typical removal and installation of this transmission and transfer case assembly behind this 2F.


The transmission support brackets being removable or not has zero bearing on the serviceability of this unit in this application.



Depending on your engine and frame configuration, you may have more room.

[DomSmith]

That makes perfect sense. I've decided to weld a couple of inner frame plates on each side, and bolt the drivers side "L" bracket and weld the Passenger side bracket. Thanks for the info. This thread has helped a ton on my project.

[sammule]

Originally Posted by Josie'sLandCruiser

Hi All:

I'm sorry, "DaveWest5150," but I don't see how that could work!

No disrespect intended, but there is simply not enough room to squeeze in a F Series engine, H55F, and "split" t-case in between the front motor mounts and the mid-chassis crossmember on a FJ40 that came with the H41/42 four speed tranny!

Sure, if it was a B Series engine and H55F and t-case drivetrain it might fit. But, there will definitely be clearance issues with a 2F and a H55f and that mid-chassis crossmember!

Regards,

Alan

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I have a modified 01/80 FJ40 with the 2F and H55. It all fits and runs with the the original torque tube cross member in place. It is a very tight fit. The real question is whether I could ever change the clutch if it needed to be replaced. The rebuilt 2F and H55 where installed as one unit through the front of the FJ40.

[Poser]

Originally Posted by sammule

I have a modified 01/80 FJ40 with the 2F and H55. It all fits and runs with the the original torque tube cross member in place. It is a very tight fit. The real question is whether I could ever change the clutch if it needed to be replaced. The rebuilt 2F and H55 where installed as one unit through the front of the FJ40.

Welcome.



There is a pretty easy answer to this:


No.



There is not enough room to separate the transmission from the flywheel housing with the engine in place. The engine, transmission and transfer case assembly will need to be lowered and tipped down so that the engine is on the top of the front axle housing, so that the transmission and transfer case assembly can be unbolted from the flywheel housing and slid rearward, or the whole drive train assembly removed and serviced outside of the vehicle.

There were pictures of this very procedure earlier in the thread.

[matt.mcinnes]

I can get mine out but it's a real squeeze but then again i don't have the e brake on the tail shaft.

My mechanic has it down to a fine art.

[DaveWest5150]

Steve, or anybody else that may want it.
I still have my custom 5-speed instuction plate that we had made years ago
(the one that fits on the glove box)
I have since gone the sm465/toybox/splitcase route.

let me know
Dave

[Poser]

Thank you for the offer Dave.


Shane, AATLAS1X out here sent me a new one that he had made, along with a new pocket door...I have installed these items, but just forgot to take/post up pictures...

[Hugh Heifer]

Originally Posted by Poser

So since the rear engine mounts that fasten to the flywheel housing are no longer being used, I needed to figure something out for the passenger side mount that incorporated the slave cylinder mount. I was going to make something, but then found that a 60 series bracket appeared to attach in a similar location on the flywheel housing, but with 10mm diameter fasteners. I removed one that I had at the shop, drilled it out to .50”, and it fit like a dream, and works great! You can also see the 1982 and later style gear reduction starter motor that was installed and new 00 positive starter lead.

This is the only thing here that has confused me. Passenger side clutch cylinder? What years changed to that? If this is a late model mod, and you were going to do this with an earlier model could you leave the cylinder on the passenger side just as easily? Or is this a H55 requirement?

[Poser]

Originally Posted by Hugh Heifer

This is the only thing here that has confused me. Passenger side clutch cylinder? What years changed to that? If this is a late model mod, and you were going to do this with an earlier model could you leave the cylinder on the passenger side just as easily? Or is this a H55 requirement?

Was moved over there in 1975, iirc...


You can leave it on the driver (left) side as long as you have a rear engine mount that is configured that way currently...you will just need to modify the flywheel housing to fit the H55 as was shown in previous pictures.

[Hugh Heifer]

Poser, on the crossmember, I think you just mentioned it to be a "late." to you recall the year. I was looking at an '84 60 model crossmember and I understand they are different but was wondering what year you used and if the earlier (between frame style) could be used as well.

[DomSmith]

Hugh-

If you're talking about the tranny cross member the differences can be seen here:

the upper gray is the NEWER FJ60 cross member that I don't think you want. Too much work for a 40 IMO.

The lower black one is EARLIER (this one is an 85).

[Hugh Heifer]

Thanks Dom,
I continued to search and just found that pic and it made things clear. Seems the ticket is the earlier crossmember with the '85 and on split transfercase and that will get you rolling with just the usual tool throwing and f bomb dropping!

[79BJ4T]

Poser:

I have a 1979 BJ40 with the 4 speed tranny. The rear mount is actually underneith the clutch bell housing, not under the tranny. Is that what you refer to earlier? In that case am I OK or do I need to add a crossmember below the transmission. I assume the 5 speed is around a 100 pounds heavier and all that's cantilevered on the bell housing.

2 questions:
How much longer is the H55 than the H42?
How much do the shifter holes move back?

Thanks,

[matt.mcinnes]

Originally Posted by 79BJ4T

2 questions:
How much longer is the H55 than the H42?
How much do the shifter holes move back?

Thanks,

79mm springs to mind or 3.11"