it depends on what make of vehicle you have!
Yup. Unless it's gear drive. Chain and belt drive, just release the tension or unbolt the gear from the cam. Turn the cam or crank A LITTLE (no full turns, you might bend valves). Just turn it enough to get the marks on center, and reinstall the drive.
Gear drive usually means you will have to pull the cam out, so you better pull the lifters.
Just the lifters and gaskets. It would me smart to replace the timing chain and gears too.
Timing gears
The lifters are underneath the camshaft, they sit on top of each valve, if it's 1.9 liter engine. You must remove the cam, or cams, cam gear ('s). Make sure you make sure the timing chain stays on the exact teeth of the gears, if removing the cam gears. The lifters sit on top of each valve, 8 or 16.
it has both chain and gears
It has a timing chain and gears. NO timing belt.
how to get the timing gears off the crank and cam shaft
No, it only has one timing chain but has two timing gears
It has a timing chain and gears.
All timing gears. You have to disassemble the entire front of the truck and engine to access.
Pulling gears, pulleys and such.
It has a chain and gears. NO BELT. There would be no reason to fool with the timing chain and gears on that year engine. The chain and gears would out last the engine.
the timing marks are on the cam and crank gears in the timing case.