1HZ install into a 1978 FJ40

[DanS HJ-45]

Holy Mackerel Wayne!!!

You built a skidplate for the crossmember bolts. How's that for attention to detail? Good Show.

Dan

 

[crushers]

mods completed and ready for sand blasting and re-powder coating...

 

[crushers]

cross member powder coated and installed...

 

[crushers]

and this is where we sit waiting for the rear axle...
tomorrow i reinstal the engine and then start detailing it...

cheers M8s

 

[swamprunner]

Wayne,

I have just acquired a new project very similar to yours...its a partially finished 45 with a 1hz (NA). I have a few questions involving the wiring of the 1hz. Cruisers Solutions started this build and I'll be following behind there half ass work. I have changed everything over to 12v (starter and alternator) and thats as far as I've gotten. James from cruiser parts has sent me a 45 harness and I've laid it out in the truck. I need to know where to go from here. What needs to be done to wire the fuel solenoid correctly and get this thing to fire up. Its a 5speed so no tranny wiring hassles. Do I need to wire in a step up transformer to get 24v to the solenoid? What part of the 1hz harness can I get rid of?

I know this is alot questions and don't mean to hijack your thread. your moving with light speed and my build is going to crawl along as time allows.

I may post up a thread on my build b/c I feel it will be a nice rig once done. all the drivetrain is installed and the body is mounted...the rest needs to be finished. Its a fairly high dollar rig. All aluminum body (except the hood and fender skirts). I don't know the exact figure but I know its already over $50k.

Any help/advice you could provid would be greatly appreciated.

Thanks in advance and I'll following this thread for more ideas on how to complete mine.

Matt

 

[swamprunner]

One more question about your build...I saw your waiting on the elocker hubs. I assume you going with the rear elocker in the front and waiting on the hubs to make it work. Can I ask what made you choose that route over a high pinion front elocker?

 

[crushers]

the high pinion front is weaker than the rear even when lockers are added to the equation. if the question is why didn't i just swap the HP front locker into the old style housing then the answer is ... it won't fit.

wiring, as each peice is wired back up i plan on taking pics and discussing what i did...

HZJ45 is a GREAT idea. congrates...

 

[swamprunner]

I know it wouldn't fit. Just didn't reallize it was that much weaker. I know its a smaller ring gear. I haven't been able to break the two I have yet.

I'm looking forward to seeing the wiring schematic pics.

I'll get some pics of my project after the holiday. I start a thread in this forum so we can compare notes. I'll be sure to link it to the 45 section for all the 45 guys out there.

 

[crushers]

the front smaller diff also wears quicker than the rear (check out the 80 series) when using constantly.
i have had 2 break, one in a 97 HZJ75 turning 35s and one in a PZJ70 turning 31s... both abused off road.

IF this was a newer rig i wouldn't change to the older version but if doing a build from scratch ... why not.

 

[crushers]

this is the skid plate installed
note the clearences around the rear output...

 

[crushers]

some powder coating pics,
first sand blasting is essential...

 

[crushers]

finished product

 

[crushers]

page three, i guess it has been a while...
update:
when installing a FF disc 70 series rear diff into a 40 you need to move the spring perches over 1" each side.
you tear the diff down completely
cut off the old perchases what ever way you want, i wanted to make sure the diff did not get damaged so i elected to use the zip disc and sander to clean the old unwanted debris.

the diff was in perfect shape and a great canidit for this application.

 

[crushers]

place dodge spring perchases on the springs making sure that the springs are the proper distance apart.
set the empty diff onto the spring perchases and measure from side to side for center
tack weld the perchases in place
move the diff to a comfortable location for complete bead
clean bead and take all relevant parts to sand blaster and powder coaters

 

[crushers]

while waiting for powder coating to be complete start on fiberglass tub fitting

 

[crushers]

checking fit of tranny t/case to opening.
this rig will have the tranny hump installed as per usual but also a quick release inspection tunnel cover cut into it to remove the need to remove the fuel tank, seat mounts etc each time the tranny is removed.

 

[DanS HJ-45]

And I was just thinking I should go bump this thread Wayne....

Awesome. Simply Awesome.

Dan

 

[crushers]

the customer also wanted a front facing folding rear seat with shoulder straps.
first check the available width of the opening
next check the width of the seat mount to determine the spacer required to mount the seat.
also check the rear for a proper certified fastening system.

 

[crushers]

strip rear donor seat to bare metal

 

[crushers]

test fit bottom for clearences