Crushers 1hz install helped a lot and have had a lot of questions answered here so hope this will help others
apologies to the OPs on the pasted info--I meant to just save it for the install but some of this is good info to put in one place here in the diesel section
What I have 1HDT mechanical from a 98 80 series
h55 and case from a 88 HJ60
also have the axles and driveshafts from the 60
71 FJ40 begging for a TD
got a lot of help here in the Diesel Section and here is some of the info I have
Some parts that might be helpful
1HD-T 300mm Pressure plate #31210-60121
1HZ 275mm Pressure plate #31210- 36161
1HZ release cylinder #31470-60161
1HZ-7* bellhousing from a 7* series with a 1hz and h55 OEM PN 31111-60230
hj57 motor mounts (rubber)
hj47 crossmember
1hz to h55 input shaft 33311-60170
checked with roodogs and G&S for the bellhousing along with halls 4x4 in Aus but in the end Toyhatsu Aus came up with the goods
Toyhatsu was suggested in another post so I appreciate that info!
also helpful was
(Onur Azeri
Parts Department
American Toyota
505.998.0264 [direct line]
oazeri@americantoyota.com
for these parts used I'd estimate around 1300-1400
next comes the clutch issue
a 275 MM flywheel mated to a 1hz clutch, PP, and flywheel will work but some say not strong enough for a turbo
or a 1hdt flywheel 300 mm and pp mated to a isuzu clutch
here is a good post on that
Regarding mating a 1HDT to an H55f:
My cruiser underwent such a swap last year. Icky (Jeff B.) and I collaborated on the mating issues
and G&S were the beneficiaries of the knowledge we gained. The bellhousing and H55f needed are from a
1HZ powered 70 series (70/73/75 etc.) Since the block casting is the same between the 1HZ and the 1HDT,
the bellhousing bolts up. This is not the case with a 1FZFE unfortunately, no H55f was installed at the
factory behind a 1FZF/1FZFE.
The HZJ7x transmission unfortunately has a 21 spline input shaft, where as a 1HDT normally takes a 300 mm
(exc. Western Europe) clutch disc with 14 splines. Toyota makes no 300 mm clutch disc with 21 splines.
Serendipitously, Isuzu makes such a clutch disc that mates with the 1HZ version of H55f perfectly.
Note that the 3F/2H/3B versions of H55f do not have the same input dimensions and cannot be used for
such a conversion unless the input is replaced. The clutch pressure plate itself is a 1HDT part.
Another option to use 100% Toyota parts is to use a 1HZ flywheel and clutch disc and pp, but these only measure 275 mm.
Western Europeans for some reason also get the smaller clutch size, but they seem to do fine with it.
More ON CLUTCH
the connection to a cast iron H55 transmission is made with a HZ input (can go in any october 1985 or later H55),
either the 275 HZ flywheel or better the 300mm HDT flywheel, for disks =
275 use std toyota HZ for 300mm use an Isuzu NPR clutch disk, then correct pressure plate.
GOOD ADVICE ON USING A 60 CROSSMEMBER
I have seen a few installs where they have used a 60 series cross member under the gearbox and it can snow ball on and give you angle troubles.
The cross member under the gearbox in the 45 & 47 is nearly the same as in a 60 series except for one thing, the side brackets on the cross member are deeper because the chassis on a 60 series is deeper.
So when you use the 60 series brackets you actually drop the gearbox down closer to the ground by a good inch or more.
So you end up with alot of different angles on your motor/gearbox to your front & rear drive shafts. Also the clutch
fan is not level (vertically) up against the radiaitor so you end up having to push the top of the radiator towards
the motor so the fan will actually do what it was designed for.
What I am saying is because of that 60 series cross member all the alignments are wrong. If you have to use the 60
series cross member lift it up 1 1/2 inches above the chassis and cut the top of the brackets off level with the
chassis if you don't like the look of then sticking up above the chassis. Or if you can get the cross member
from a late model FJ use that instead.
From the firewall forward the HJ45/HJ47 are the same as a FJ, but as you go back along the chassis thats where
things start to change.
Also check your gearbox bracket when it comes to mounting it on the chassis, if you need to use spacing blocks
because the cross member is not wide enough, use the spacing block mainly on the RHS otherwise the motor will
be sitting on an angle in between the chassis rails (front of motor points to the LHS and the back of gearbox
pointing to the RHS) and in turn gives you another angle to contend with in your drive shafts.
apologies to the OPs on the pasted info--I meant to just save it for the install but some of this is good info to put in one place here in the diesel section
What I have 1HDT mechanical from a 98 80 series
h55 and case from a 88 HJ60
also have the axles and driveshafts from the 60
71 FJ40 begging for a TD
got a lot of help here in the Diesel Section and here is some of the info I have
Some parts that might be helpful
1HD-T 300mm Pressure plate #31210-60121
1HZ 275mm Pressure plate #31210- 36161
1HZ release cylinder #31470-60161
1HZ-7* bellhousing from a 7* series with a 1hz and h55 OEM PN 31111-60230
hj57 motor mounts (rubber)
hj47 crossmember
1hz to h55 input shaft 33311-60170
checked with roodogs and G&S for the bellhousing along with halls 4x4 in Aus but in the end Toyhatsu Aus came up with the goods
Toyhatsu was suggested in another post so I appreciate that info!
also helpful was
(Onur Azeri
Parts Department
American Toyota
505.998.0264 [direct line]
oazeri@americantoyota.com
for these parts used I'd estimate around 1300-1400
next comes the clutch issue
a 275 MM flywheel mated to a 1hz clutch, PP, and flywheel will work but some say not strong enough for a turbo
or a 1hdt flywheel 300 mm and pp mated to a isuzu clutch
here is a good post on that
Regarding mating a 1HDT to an H55f:
My cruiser underwent such a swap last year. Icky (Jeff B.) and I collaborated on the mating issues
and G&S were the beneficiaries of the knowledge we gained. The bellhousing and H55f needed are from a
1HZ powered 70 series (70/73/75 etc.) Since the block casting is the same between the 1HZ and the 1HDT,
the bellhousing bolts up. This is not the case with a 1FZFE unfortunately, no H55f was installed at the
factory behind a 1FZF/1FZFE.
The HZJ7x transmission unfortunately has a 21 spline input shaft, where as a 1HDT normally takes a 300 mm
(exc. Western Europe) clutch disc with 14 splines. Toyota makes no 300 mm clutch disc with 21 splines.
Serendipitously, Isuzu makes such a clutch disc that mates with the 1HZ version of H55f perfectly.
Note that the 3F/2H/3B versions of H55f do not have the same input dimensions and cannot be used for
such a conversion unless the input is replaced. The clutch pressure plate itself is a 1HDT part.
Another option to use 100% Toyota parts is to use a 1HZ flywheel and clutch disc and pp, but these only measure 275 mm.
Western Europeans for some reason also get the smaller clutch size, but they seem to do fine with it.
More ON CLUTCH
the connection to a cast iron H55 transmission is made with a HZ input (can go in any october 1985 or later H55),
either the 275 HZ flywheel or better the 300mm HDT flywheel, for disks =
275 use std toyota HZ for 300mm use an Isuzu NPR clutch disk, then correct pressure plate.
GOOD ADVICE ON USING A 60 CROSSMEMBER
I have seen a few installs where they have used a 60 series cross member under the gearbox and it can snow ball on and give you angle troubles.
The cross member under the gearbox in the 45 & 47 is nearly the same as in a 60 series except for one thing, the side brackets on the cross member are deeper because the chassis on a 60 series is deeper.
So when you use the 60 series brackets you actually drop the gearbox down closer to the ground by a good inch or more.
So you end up with alot of different angles on your motor/gearbox to your front & rear drive shafts. Also the clutch
fan is not level (vertically) up against the radiaitor so you end up having to push the top of the radiator towards
the motor so the fan will actually do what it was designed for.
What I am saying is because of that 60 series cross member all the alignments are wrong. If you have to use the 60
series cross member lift it up 1 1/2 inches above the chassis and cut the top of the brackets off level with the
chassis if you don't like the look of then sticking up above the chassis. Or if you can get the cross member
from a late model FJ use that instead.
From the firewall forward the HJ45/HJ47 are the same as a FJ, but as you go back along the chassis thats where
things start to change.
Also check your gearbox bracket when it comes to mounting it on the chassis, if you need to use spacing blocks
because the cross member is not wide enough, use the spacing block mainly on the RHS otherwise the motor will
be sitting on an angle in between the chassis rails (front of motor points to the LHS and the back of gearbox
pointing to the RHS) and in turn gives you another angle to contend with in your drive shafts.
can drive it without having to worry about cooking the motor and thus angering me. (just kidding, I won't be angry, the 2LT-E will crack someday anyway...).
