1993 truck back sliding window leaking is this an easy repair to pop it out and reseal It

 

Where exactly is it leaking?

Should be one big rubber seal holding the window to the body, easy enough to remove, shouldn't take too long.
...didnt take me too long when I locked myself out of the truck......
If not the seal then after you remove the assembly you will have access to remove/fix individual windows

 

They're pretty easy to remove. The sliding window weather-stripping isn't glued in. You'll need to fold back the rubber on the inside and work your way around. May help to have someone outside helping to pull and hold the glass as it comes out.

 

ok thanks got this truck for the property,just rying to get it to run and fix the leak

 

If you find the weatherstrip is stiff and hard to work with you can try putting it in a large pot of boiling water for about a minute. It’ll help it regain some of it’s suppleness

 

Before our auto glass guy pulls out windows that leak he looks closely at the windows weep holes.
Look at the track the window slides in. There should be holes that let water out to the outside.
If sealed closed or full of gunk water will run up and over the track to the inside.

Good Luck.