I have a chance to buy some older Toyota pickups at a good price. Are parts hard to find for older models?

How old are we talking about?

I agree with Humanoid, it depends how old is "old". Parts for mid '80s and up Toyota trucks arent too hard to come by, but if it has a diesel engine in it you might have a hard time coming by parts (not to say you wont be able to find them, but dont expect your local auto partshouse to stock them).

Can you substitute those parts? I've done that on non-toyota trucks when they get to a certain age.

In some cases you may be able to go with non-OEM parts, but in a lot of cases you arent going to find a whole lot of aftermarket support for older Toyota trucks, especially when it comes to engine/transmission parts.

They are from 1985-1987. In decent shape.

That shouldnt be too hard to find parts for, especially if it has a 22R or 22R-E engine in it.
The hardest part of owning a Toyota truck of that era was keeping the body on it. The bodies in those days rusted-out in no time.

the body is in good shape but does show some wear on it.

Road salt really takes it's toll on the bodies of those trucks. A lot of people invest in fiberglass fenders and bed sides to reduce issues with body rust.
I still think the trucks of that era were the best-looking trucks Toyota has ever made. The '05+ Tacomas are a close second, IMO, but I loved the styling of mid '80s Toyota trucks and 4Runners.

I agree that road salt takes a toll on the beds of these trucks. I heard these trucks were some of the best ones made. i don't know if that is true though.

Id say they are among the most reliable. I had an '85 4Runner with a 22R-E and a 5-speed manual tranny that had over 245,000 miles on it and ran like new.
The tranny was original and the engine had over 300,000 miles on it (the previous owner drove it with a blown headgasket untill it ran out of coolant, overheated and siezed at about 150,000 miles and he put an engine out of a junkyard in it that had about 180,000 miles on it).
I beat the heck out of that rig (it was so underpowered that you had to run it hard just so you wouldnt get run over) and it never let me down.
Other than the infamous 3.0L headgasket eater, I dont think Toyota has ever really made any bad engines though.

Man, you ran the heck out of that. Glad to hear that. Hopefully when I get these two they will run just as long.

My nephew and his wife both have Toyota trucks. They say that they will never buy any other brand. The one has more than 200,000 miles on it and runs like new.

Not really. 245,000 is really nothing for a Toyota. I know of people who have older Toyota pickups like the one you are looking at who had 300,000-400,000 miles on their rigs on the original engine and tranny.
Those old 22R and 22R-E motors run forever.

Wow, Didn't know they were that durable. I hope these last that long. Getting them soon so wwe will see.

No, you won't have any trouble with parts for the 1980's. My Tundra was easy to get parts for and it was a 88 or 89. Usually you can even get them at places like Auto Shack but even if you can't there, most any junk yard will have them. I go with new or reworked first though.

Toyota makes a really tough truck that lasts!

Everyone tells me they are tough trucks. I will put it to the test. Suppose to pick the two trucks up this week. One runs and one is for parts it looks like.