In the low pressure service port, the smaller of the two.
Answeryes you can
how many pounds of freeon di i add..an were do i put it in.does the air conditioner have to be on when charging
No.
yes they are the same.
From truck to truck, yeah, they are the same.
yes, they should be identical.
Yes, But it won't look right. 1988 is when chevy redesigned the body / changed it.
Very carefully..
No, Nothing will line up are even match up.
Drain the tank, change the fuel filter, refill with diesel.
Once AGAIN... the port is in the right front wheel well behind the splash guard. And that's freon, not freeon.
Many Chevy motors will interchange, need to know what you have in mind.