i might be picking up an 01 blazer for $500.00 and it runs only thing is no title. would most of the parts on it fit my 99 without much hassle? im thinking like the tranny and maybe engine. windshield and a couple other various body parts...

 

I'd imagine almost every part would be compatible or could be made compatible pretty easily.

 

Pretty much identical. Options would be the only difference. Some things may require reprogramming to swap over (pcm, bcm, things like that).