VG,
>> What are the common problems with the 80's? <<
Depending on your definition of
problems....
Antenna masts tend to get caught in garage doors.
Engine, 3 diffs, & tranny need fluids periodically.
Cooling system needs coolant avery year.
Starter contacts fail every ~90k miles.
Batteries fail every ~5 years ( ~2yrs if you use Optimas

)
Tyres need to be replaced every 6 months. (They tend to shrink and you need bigger ones)
Front and Rear axles need to be serviced every 60k miles (some push to 90k)
Front pads need to be replaced ~30k miles; ~60k for rears
Rotors need to be replaced ~100k miles.
PHH. (Lotsa discussion on this little jewel)
Filters need replacing. Air, oil, and sometimes fuel.
The 80's use copious quantities of petrol.
The paint wears off the hub caps.
The POS roof rack causes rust if not attended to.
Springs & shocks need to be replaced every ~1yr to "improve ride quality"
(yeah, right! - We really just want taller)
Belts need to be replaced ~100k
Spark plugs and other tune up items ~100k (though 60k would be better)
Alternator brushes should be replaced ~150k (give or take 50k)
Tyres need to be rotated ~5k miles
....
>> Is there something with the tranny I should look for? <<
No. The tranny is bullet proof and we've had very few reports of requiring rebuild/replacement. Occassionally they will need solenoids but you'll know it when they fail.
>> Are the head gaskets a big problem on all 80's or ealier ones or later ones or what? <<
Most cast iron block & alumin head I6 engines are susceptible to HG failure and our 1FZ-FE's are no exception. Cooling system maintenance may improve the life.
>> I want good reliable transportation that I can take care of <<
>> (I am religious for maintenance) and that will last forever. <<
>> Am I looking in the right place? <<
Yes.
Most on this list are fanatical about maintenance because most of us plan to keep these vehicles a very long time. Others are fanatical about maintenance because we carry our most prized possessions (wife, kids, & dogs) in our trucks.
This forum tends to address "best practice" on maintenance. As an example many of the regular posters use synthetic lubricants. It's not required but we do it anyway. We lean toward "best practice" on projects and will replace all gaskets, bearings, bolts, nuts, etc. when the average mechanic and the average DIY guy would re-use those pieces. We tend to recommend only OEM parts; they're sometimes more expensive than the NAPA equivalents but we know these OEM parts are quality and will fit. We had a recent discussion on using distilled water vs tap water in the cooling system. The FSM suggests distilled water but as we all know, there are millions of vehicles running around with tap water and they're cooling just fine but as far as I'm concerned, tap water is not good enough for *my* Cruiser.
-B-