Build A TX Build 2.0 (1990 HZJ73)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Mar 31, 2005
Threads
122
Messages
624
Location
Vidor, TX DIXIE
I've had this rig a few months now (since May 2019) but with some recent issues, I wanted to start cataloging my build for myself. This is my 7th land cruiser I have owned since college. As you can see, I've been a ih8mud member since 2005. I had never considered a 70-series until I found myself needing to commute from DFW to Houston every week for work. I like unique vehicles and so when I saw a BJ71 with factory lockers for sale close by I couldn't pass it up. It was a spontaneous purchase and so after 9 months of driving it, I figured out what I did and did not like about it. The wants I had that the 71 lacked were wheelbase (I have a Marlin Crawler toybox to install) and interior cargo space. I wasn't looking for a new rig but saw a 1990 HZJ73 pop up on mud's classified section for a price that I could justify selling the 71 and buying the 73 for.

Pros:
Low miles 1HZ (~193,000 km)
Perfect frame, body rust was isolated to one quarter panel
Suspension seats(I just like them)
Rear Disc Brakes
Beefier front axle
Removable Top

Cons:
Completely stock
Paint had strong patina
Rust in the one body panel

In the first 2 weeks after purchase:
-I swapped the front and rear Cruiser Outfitters bumpers off my 71 onto the 73.
-Changed oil (Rotella)/filter (OEM)
-Upgraded suspension to OME heavy rear, medium fronts
-35x12.5x17" Nitto Mud Grapplers on 17" Method Beadlocks
-Painted the front fenders/hood/cowl/fender flares
-Removed rear seat to install my ARB fridge.
-Bought an Escape Gear dash cover from a mud member. (The pockets on this combined with my Dougs Tub make use of the front space for storage)
-LED cargo light
-Wired up 24v/12v step down converter for charging, CB, and amp.

About 6 weeks into the purchase, I bought a front axle with manual hubs from @joekatana so that I could do a manual hub conversion. I was already digging into the front axle to replace all the brakes so I upgraded the hubs then.

I was prepping for a July Colorado trip from the day I bought it.
-Installed a 5' firestik that I remove for daily driving
-Koito amber fog lights.
-Built a box to mount my ARB & slide onto.
-Installed e-tracks to front and rear of cargo space for tie down points.
-Bought a Yukon Zip locker & compressor for the rear 9.5" axle (not installed as of 8/12/2019). A friend/fabricator is a Yukon dealer and so I went that route.
 
A few pics from the first day I stopped by to look at it at the importer's lot. Last, a pic when my brother (4runner) and I made a trip to pick it up. That's my BJ71 in front of it.

IMG_8485.jpg


IMG_8499.jpg


IMG_8628.jpg
 
Pics of the ARB slide fitment in back of the 73?
 
The slide is actually Dometic, for a larger fridge than my 50 qt. The box was quickly put together for function, nothing nice about it. I'll be redoing it. The pic of it is before I even finished it but it's the only one I have on my phone. I used the factory points plus e-track to mount turnbuckles to.
 
Before the manual hub conversion, I got stuck in some light mud at my deer lease. I was p!ssed that I could get stuck in almost nothing. After I disassembled the electric hubs, I found that one may have been broken. And 3 days before I was supposed to go to Colorado, I found that 5 bolts had broken on one beadlock

IMG_9271.jpg


IMG_9735.jpg


IMG_9736.jpg


IMG_0236.jpg
 
This all leads me to this past Thursday, 2 weeks after getting back from CO. The engine overheated while heading to my deer lease. I'm fortunate it didn't happen on my trip to CO. I am ordering a new timing belt(was due for one anyways) and water pump. I also plan to remove the head to make sure no cracks occurred and to replace the gasket.
 
1PZ/1HZ powered 7x trucks: (1HD-T and FT engines share most of the below as well but the hoses will be different since those engines did not come in 7x vehicles that I know of).

Water pump: 16100-19235 (comes with metal gasket)
Upper radiator hose: 16571-17020
Lower radiator hose: 16571-17020
Thermostat: 90916-03089
Thermostat gasket: 16346-66020 (same as a 1FZ-FE)

The drive belts come as a set which is pretty cool, just like the 1FZ-FE: 90916-02452

AC belt will be different based on market but is generally 99332-10860-83

Timing belt will be different based on the tensioning system-- whether it has an integrated tensioner/idler pulley with spring or whether it has an idler with a separate hydraulic tensioner. The split is in the mid-1990's on different engine iterations.

Early timing belt: 13568-19065
Later timing belt: 13568-19195

Tensioner/idler: 13505-17011
Tensioner: 13540-17010
Idler: 13505-17020

Front timing cover seals: should be changed out when doing water pump/timing belt jobber:

90311-58007
90311-58006

Valve cover gasket: 11213-17010

credit to Onur for the above post. I'm just copy/pasting for reference.
 
The radiator hoses for a 1PZ are not the same as 1HZ.
( Some say the 1HZ hoses work, but I haven't personally tried using them on the 1PZ.). Would love to know if anyone tried this.

1PZ hoses are as follows:

Upper radiator hose: 16571-17030 (and is discontinued)
Lower radiator hose: 16572-17030 (still available)
 
Last edited:
I’m in Houston as well and have a troopy. A friend of mine said he had spotted a RHD short wheel base 70 series and I didn’t believe him but then pretty sure I saw you drive right by my house a week or two ago. Let’s link up some time.
 
I sold my BJ71 to a guy who lives in the Heights. It also could’ve been him. So depends on how short the swb your friend was. I’ve seen a tan 75 running around the Heights.

What area of Houston are you in?
 
It could have actually been that one. I live in the heights. Is it blue as well? As I’m recollecting I’m not actually sure it had an FRP top but it was a glance.

I have a green 75. Never ran into another 75 in the neighborhood so far.
 
Long story short, the 1HZ runs but has blow by. I swapped Heads to a good head. The old head was cracked. I have a 1HDT coming in thanks to @joekatana at the end of March I’ll be swapping into the HZJ73. I’ll post install pics as they come up.

some of the things I have done since my last post are acquired and painted rear factory half doors, factory roll bar, Come Up winch, and Yukon Zip locker.
 
Back
Top Bottom