HZJ75 Troopy Automatic Conversion

[cruiserdan]

Is the A440F the same gearbox that is in the late '80's BJ74?

* Important things that happened in 1968 ...... Wayne's 45th birthday.

 

[dadinabarrel]

Not sure dude

 

[dabasscow]

Wicked, that'd go nice

Yeah it goes alright, 37" wheels, 4" , guard chop.

 

[dadinabarrel]

Is the A440F the same gearbox that is in the late '80's BJ74?

As far as I know, there are only two types of A440F - hydryaulic (mine) and electronic. All auto trans are hydraulic, it's just a matter of how the gear shift is controlled.

I'm sure that's how the A442F are set up as well. In terms of conversion you need to get the matching bell housing/torque converter/flex plate to match your engine and the transfer to match the trans.

 

[LBCFZJ]

Saw this in another thread.

Thought this may be helpful. 1HZ has an aftermarket conversion kit from Wholesale Automatics in OZ.

 

[dadinabarrel]

Thought this may be helpful. 1HZ has an aftermarket conversion kit from Wholesale Automatics in OZ.

Naah, they don't dude, I've had quite a few calls with Rodney from Wholesale Automatics in Melbourne, they do transmissions and torque converters that will bolt up to a 1HZ but their conversions are for putting a 100 series transmission behind a toyota V8 diesel from the wide body. Veeeeeery expensive.

I even presented them with a technical problem with the fit that I had to engineer myself as they hadn't seen it before. (lucky my son is a fitter/machinist with access to all the gear)

I'll lay it all out with photos when I'm done. I was bolting up the whole setup yesterday and found that it did not fit under the Troopy. The train was 20mm too long with no option but to move a crossmember, so that'll be today's mission before I can continue.

 

[dadinabarrel]

Update

I'm away for work at the moment, when I get home, I'll hopefully have my mods to my HZJ75 finished and be back on the road:

Complete so far:

• Convert from 5 speed manual to A440F 4 speed auto transmission with synthetic trans fluid, extreme valve body http://www.automatictransmission.com.au/release.asp?NewsId=4651 with third and fourth gear lockup, lo stall billet HD torque convertor http://www.automatictransmission.com.au/release.asp?NewsId=41077 and external double pass transmission cooler http://www.ebay.com.au/itm/Dual-Pass-Transmission-Oil-Cooler-Fan-Kit-w-Acc-/310880263768
• 80 series transfer case with Mark's Adaptor part time spool fitted
• New shafts (one longer, one shorter)
• New transmission crossmember
• Flex plate mods
• wiring for centre diff lock
• bits and pieces

The next couple of weeks (head is off)

• 4" plenum inlet manifold with 3" out to the intercooler
• Massive WTA intercooler 3" in/out http://www.ebay.com.au/itm/121146265217?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
• Bosch Cobra intercooler pump, all 19mm lines, customise the front of engine bay to replace intercooler radiator with a http://www.ebay.com.au/itm/261070868548?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 remove outlets and fit 19mm ones, cool the whole thing with http://www.ebay.com.au/itm/110891093254?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 remove fan from engine. I may go to a dual fan - push/pull setup, trials will tell me what I need when I'm back on the road
• Ported and polished head with 5 notch gasket
• ceramic coating to pre combustion chambers, valves, inlet runners and exhaust runners
• performance exhaust manifold
• ceramic coated GT2871 (turbine) with Big Head waste gate actuator http://www.ebay.com.au/itm/200522570627?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
• 3" exhaust straight from the turbo, flowmaster muffler and exit in front of the back wheel
• All pump mods maxxed on the 10mm VE

Then we'll see where we are. At 20psi, I expect it to be running very lean as there is a limit to what the 10mm VE can distribute. I'll probably go straight to the 12mm.

 

[dadinabarrel]

So, it begins...

Once I had the gearbox out I quickly realised that the A440F was the same size with no transfer case attached

New input and output shaft seals fitted to the A440F

It's a helluva lot longer with the transfer attached

Then I fitted a part time transfer spool to the transfer case

 

[dadinabarrel]

Part time transfer spool installed

As I mentioned above, there was a -16mm discrepency between the torque converter face and flex plate, so I machined the counterweight into a washer

Then had my son machine up a bush to centre the torque convertor and finish off the tolerance correction

 

[dadinabarrel]

That sorted out the spacing, but reducing the gap by 16mm means I now have to remove the 16mm (coincidence?) offset on the flexplate, I had the centre removed and rewelded, the flexplate is now at the dead centre of the ring gear
Before

After

Plus 4mm off the bolt heads (thanks Jared)

Now we're in business

 

[dadinabarrel]

Ok. time to whack it in.

First problem, it hits the fuel tank

And it hits the crossmember

Looks like I've got enough room to reposition the tank rearward and get this thing in

So I've cut out the crossmember (I'll over engineer the transmission mount crossmember to compensate - 50mm x 4mm tube) and removed the fuel tank (build new mounts for it later on so I can move it aft)

Now it fits

And I still have room to reinstate the crossmember if need be

Plenty of room

 

[dadinabarrel]

These guys did a really nice job on lengthening/shortening/balancing the shafts - $170 a pop

I cut out an inspection hatch from the backing plate so I could get access to my flex plate bolts

Tidy enough once it's all bolted up

Finally, I've got one of these

 

[dadinabarrel]

I'm covering the whole floor pan with 1 layer of Dynamat Extreme, with two layers on the tunnel

I've since finished the interior, Cloth bucket seats out of a 2014 WRX, new black carpet, black full console from an auto 80 Series cruiser, boost, EGT, trans fluid temp, intercooler water temp & AFR gauges. I'll post that next week when I get home from work.

I used a three gauge pod on the dash in front of the driver, then pulled the rear fuel tank level indicator console apart and made a new faceplate to fit two guages in there. Nearly done.

 

[dadinabarrel]

I started with this last weekend (actually it's an old photo, before I installed the 6" in line K & N setup and ditched the stock air box) but it's close

Now I've got this

I've got a busy couple of weeks coming up

 

[dabasscow]

Good to see it all coming together for you mate, will be watching with interest.

 

[dadinabarrel]

 

[maat]

keep the pics coming mate, looks like a top notch job

 

[dadinabarrel]

Thanks Maat, I'm a bit rough but the job gets done

 

[Clint79]

Great write up pics and info.
Ive read this post to late and was going to mention i thought the cross member and tank would be in the way, its cool you worked around it.
How much did the tank have to go back , wondering if a ute would have enough cab length to allow the tank to go back if you changed it to a auto

 

[dadinabarrel]

I've got this much room to move and I needed less so I should be ok.

I haven't fabbed the mounts and put it back in yet as I'm only starting on the head tomorrow. It'll be a month until the tank is back in.
(bloody work keeps interrupting)

It won't be pretty, but it'll be strong and in