HzJ74 VS 73

justpete · 10-01-06, 06:29 PM

I am seriously considering purchasing one of the above and would like to get opinions on which is better.
Engine?......3.4T or 4.2?
suspension differences?
is the auto tranny in the 74 the 'bulletproof' one or might it cause me grief?
is the 73 a 24V system of 12? the 24V system scares me for some reason.
thanks for any help i might get!
Pete

lowenbrau · 10-01-06, 07:56 PM

I don't know why this got moved here but I'll give you my thoughts.

The auto is the same in either and will outlast a couple of clutches and the fifth gear of the five speed. You should choose based on preference and not durability.

The 13bt is likely marginally more durable than the 1hz and then only because of the in line pump. The turbo is a liability though. The six makes similar power without one.

The HZJ 73 has bigger birfields and a smaller ring gear. Pro and con. It also has coils in the front which make it work better.

12 or 24 volts is generally market dependent and both have their benefits. Nothing to be afraid of.

IS summery, drive them both. see which one you like more. You can't go wrong.

roscoFJ73 · 10-02-06, 01:39 AM

Quote:

Originally Posted by lowenbrau

The HZJ 73 has bigger birfields and a smaller ring gear. Pro and con. It also has coils in the front which make it work better.

.

HZJ73 is leaf sprung and the HZJ74 is the coil sprung. The HZJ71 is the coil sprung 70 version

Unlike the earlier models ,a jump up in numbers denotes a suspension change from leaf to coil rather than the turbo option

Turbo models are now known by the engine prefix of HDJ**

I would get the 1HZ because it has wider,smoother power band.

Greg_B · 10-02-06, 09:06 AM

Quote:

Originally Posted by lowenbrau

I don't know why this got moved here but I'll give you my thoughts.

Me neither. Should be in the 7* series section if anything.

Other then that, agree with most of what has been said.

I figure an HZJ73 with BJ74 cable locking axles, and a 1HD-T would be a sweet ride.

Back to your question...

HZJ73's seem to be much easier to find then the BJ74's right now, so that may be a consideration.

As Bruce said: "In summery, drive them both. see which one you like more. You can't go wrong."

hth's

gb

rick_d · 10-02-06, 09:15 AM

..I don't know why this moved here, should be a 70 series thread, but..

1985-1990 trucks have the 4 wheel leaf sprung, 9.5" ring gears front and rear and most often are seen with the "3B" engine known as the BJ73 or the turbo 13B-T = BJ74.

1990-1999 have leaf sprung, only the 1HZ 6 cylinder = HZJ73, and have 8" front ring gear plus ONLY slightly larger birfields.

1999+ have coil sprung front ends, 8" front ring gear, MUCH larger birfields (ala 80 series) and are denoted the HZJ74's. No 1990+ factory turbos are know (to 2004 production) of the 102" wheel base 73/74 classes.

the auto is ok, have heard of some problems but nothing "death-nail". I prefer the simplicity of the cast iron H55 5 speed transmission in north america because of parts supply (discontinued in 1999). In another land I think I would like the H150/1 series larger transmission. The R150/1 smaller 5 speed I don't have a solid opinion on.

JDM trucks are often 24v (I run one here in Arizona) and live with the system. 12v trucks I believe became a JDM standard circa 1994 or so but sometimes had 24V start. In my mind, all 12 or all 24, don't mix.

---------------------------------------
I'd choose HZ engine because of ease of upgrade to turbo HD-T (what I have). I prefer the 9.5" ring gear, but you can't get them in front with HZ engine unless you modify. 12/24 non issue, live with what you get. and I like manuals more than auto. If your in canada, your not getting a coil front import for 5 years so scratch that.

denis · 10-03-06, 12:28 AM

Quote:

Originally Posted by rick_d

. No 1990+ factory turbos are know (to 2004 production) of the 102" wheel base 73/74 classes.

LJ73 and KZJ73 come to mind

crushers · 10-03-06, 08:19 AM

Quote:

Originally Posted by Greg_B

Me neither. Should be in the 7* series section if anything.
gb

oh give it up, there are plenty of threads in the 70 series section that should be here including the race photos thread. no tech there but it is still sitting there. i would be willing to trade you that thread for this one...

this info has been covered a few times now, a search should have been made.

lshobie · 10-08-06, 07:04 AM

Haven Driven both I like the HZJ73 much better with caveats. I like the cable lockers on teh bj74 better as well as the bigger front end. The engine is the best part on the HZJ73 - it is smooth and has lots of power -as well as power potential with the addition of the turbo.

All in all my vote is for the HZJ73.

Regards,

jcolvin · 10-10-06, 10:20 PM

Quote:

Originally Posted by lshobie

Haven Driven both I like the HZJ73 much better with caveats. I like the cable lockers on teh bj74 better as well as the bigger front end. The engine is the best part on the HZJ73 - it is smooth and has lots of power -as well as power potential with the addition of the turbo.

All in all my vote is for the HZJ73.

Regards,

Seconded. Having driven both, the engine in the HZ73 is smooth and powerful, and puts the BJ74 to shame. Its a lovely little engine it is.

crushers · 10-12-06, 05:52 PM

after beating some of the post 1990 models now i can say i like the newer rigs better than the older ones but the large front diff is nice to have...
the HZ is quieter, more poerful and b etter on fuel than the older 13BT...
cheers

bruzer · 11-26-06, 09:49 PM

i pot a pzj70 and a hzj73 come next month i know all bout the hzj but not the 1pz any help out there?

crushers · 11-26-06, 11:10 PM

i am wheeling a PZJ70 right now and have been for about a year. i turbo'd it way back and never regrettied it. i have driven the HZ for a few years now and that is a nice engien as well, they are quite comparable. the turbo PZ is faster and stronger than the NA HZ but turbo the HZ and it kicks anything Toyota's ass...
you bought 2 trucks you know nothing about?!?

bruzer · 11-27-06, 02:30 PM

you can only read so much, then buy! i own a 1989 bj73 1984 bj60 1997 tacco
1991 hdj 81. i was also bidding on the fj75 but stop at 300000yen lol

lshobie · 11-27-06, 02:44 PM

You will find just about everything you need at either ENS or G and S in BC. You can get the engine manual at ENS - i'd get that if you dont already have it.

You like JDM's! That's awsome.

I was going to go for the FJ75, but not too fancy on gassers at this point. And, I see fire trucks just about everyday - not really into them that much when you drive one all the time

Regards,

bruzer · 11-27-06, 03:08 PM

yes i got the manuals
g and s ? do you have a link?
i was going to do a engine swap on the fj75

Deny · 11-27-06, 03:18 PM

Go up to the number 4 post on this thread, and in Greg's sig line is the link.
Cheers,
Deny

crushers · 11-27-06, 03:21 PM

Quote:

Originally Posted by bruzer

you can only read so much, then buy! i own a 1989 bj73 1984 bj60 1997 tacco
1991 hdj 81. i was also bidding on the fj75 but stop at 300000yen lol

you were WAY short on the FJ75...

bruzer · 11-27-06, 03:28 PM

i know! thats the lol
i saw the winning bid
thanks for the link

crushers · 11-27-06, 03:48 PM

so, you going to introduce yourself to the forum?

lshobie · 11-27-06, 03:48 PM

http://www.gscruiserparts.com/

bruzer · 11-27-06, 06:29 PM

derik mcauley i live in prince Albert and i drive truck up in northern Saskatchewan been cruiser owner for 12 yrs and very computer illiterate
bruzer is the name for my bj60