Portuguese spec BJ73 1HDT A442 swap

[Tapage]

Chris I will measure how much my rear DS was extended after my tranny swap .. they you will have an idea of the combo length ..

 

[chrisspaulding]

Chris,

Have you noted the overall length of the A442F and HF2A(V), versus H55 and BF1A, or mind measuring when you get to mating?

I've concerns over length of A343F (should be same as A442F) and HF2A(V) length, and it's impact on rear driveshaft angles.

Having nothing but frame details and info online to assume from, but appears the the two will be 13" longer than the H55/BF1A.

Can buy 3-4" swapping HF2A(V) into an HF2A case, since (V) was pulled and have the non-V case, but that's still a lot of additional length in the drivetrain. Not being certain that the engine may not have to move back 2", too, and general concern is the rear driveline angle that may result.

Anyhow...I've been thinking about and forgot the content of thread.

Chris,
Received the shorter case, thank you very much!
I have the same concerns about the impact on rear driveshaft angle. In addition, looks like one of the crossmembers (tubular that goes through the frame) will need to be removed and relocated.

 

[chrisspaulding]

VM motor is out.

 

[Delancy]

Chris,
Received the shorter case, thank you very much!

My pleasure.

Regardless of a recent "hot topic", Cruiser karma is alive and well.

I've also an A343F/HF2A crossmember you're more than welcome to. It appears it can be modified to fit *assumed* captured nuts in the BJ73 frame, or new nuts welded to the 73 frame to attach to.

I have the same concerns about the impact on rear driveshaft angle.

The combo may prove difficult to achieve proper pinion angles with conventional methods, front and rear, even part time.

Full time is going to be a much greater challenge.

Lot of variables that may determine methods of correction, like leaf shims, transfer case shims, nominal lift, or double cardan shafts, but for full time operation, based on early findings, it's going to be difficult to keep the driveshafts happy.

The front low pinion, with the longer shaft the repositioned transfer case will necessitate, appears to be doable with a double cardan shaft and rotated axle housing (shimmed).

The rear is going to be the more difficult, considering the length of tranny/TC, and it's effect on the rear shaft length/angle.

My unsolicited advice is to scrap full time, in favor of a part time conversion for the HF2A, or sourcing an HF1A.

If swapping internal to HF2A case, be no better time for the part time kit.

Have a real time line on the HF1A, should that decision be made very soon, gladly attempt to establish dialogue between, or arrange on your behalf.

In addition, looks like one of the crossmembers (tubular that goes through the frame) will need to be removed and relocated

Due to driveshaft?

Few questions:

Any tricks to the VM removal?

Can't find a BJ73 FSM anywhere, so may be winging it, anyway.

Have you though ahead enough to know if you'll maintain the BJ PS reservoir and lines, or use the HD-Ts?

Have a bazillion others, but will try to not junk up your thread.

 

[chrisspaulding]

Chris,
Thanks so much. I think you are correct on all accounts and part-time is definitely the way to go. I am actually considering going with the H55F instead of the auto box. Considering all options, but think it will simplify and streamline the project.

The engine removal is very straight forward. I removed and labeled everything attached to the engine. I have not been able to locate a VM73 FSM either. I do not think you will need one. I'm going to use the reservoir from the 1hdt. I need to order an OEM high pressure line from the pump to PS box. I'll post about those issues as I get to them. My focus right now is on the "big stuff", getting everything out and prepping the truck to take the 1HDT. I figure I'll sort all the "little stuff" as it comes up.

 

[OGBeno]

H55F in the US market really is the way to go. Good call.

 

[Delancy]

H55F in the US market really is the way to go. Good call.

When/if an option, there is no doubt of that.

 

[chrisspaulding]

Removed front axle. Makes cutting off helper spring mounts, drilling new axle mounting holes and repainting a bit easier.

 

[chrisspaulding]

VM engine mounts removed.

 

[Delancy]

Man, look at all that nasty, non-rotted dirt!

I don't think that's really a Cruiser frame or it was painted just before you took the pic, because it's missing the port installed rust.

 

[chrisspaulding]

Cleaning and repainting while waiting for parts to arrive from Japan.

 

[chrisspaulding]

Currently draining gearbox/transfercase, removing driveshafts and prepping to remove gearbox.

 

[chrisspaulding]

Front seats and carpet removed.

 

[chrisspaulding]

Transmission OUT!

 

[chrisspaulding]

Engine mounts are clamped onto the frame. I used measurements I took from a hzj73 to locate the mounts. I took measurements between the hzj73 engine mounts and several points on the frame. I used bolt holes in the frame and a couple of brackets as points of reference. Fortunately, the location of these reference points were the same on my frame. I will test fit the engine before welding in the mounts.

 

[colby1979]

Looking great Chris! I want to do this on my 45!

 

[chrisspaulding]

Looking great Chris! I want to do this on my 45!

Thank you! That would be one beast of a truck!

 

[chrisspaulding]

Removed 80 series motor mounts and replaced them with 70 series 1HZ mounts. Length and angle of mounting face are definitely different.

 

[chrisspaulding]

Some part numbers
51421-60140 right frame mount
51422-70140 left frame mount
12311-17020 right engine mount
12315-17020 left engine mount
12361-17020 rubber motor mount (two needed)

 

[chrisspaulding]

Successful test fit of engine. Slipped right into place without any issue. In addition, it looks like the auto transmission will fit! Not 100% sure, but going to move forward and see how it goes!

Next step, get mounts welded to frame!