Custom is lower end. Limited has more features.
Yes you can. The only difference between the Custom and the Limited is the trim level (Seat fabric, wood grain, etc.) Everything else is interchangeable.
the torque for a 1988 lesabre custom is 110 ft. lbs.
difference between the upgrade
Where do you find starter relay for 99 buick lesabre custom
their difference is their plated ligature>.<
I'm not sure about the limited but on my custom the drain is on the bottom right of the radiator when you're facing the car from the front. There's a twist valve on it.
Instructions for replacing radiator on 2000 Buick Lesabre custom
The 500 has 45 more hp and 20nm of tq, custom hood/paint and is limited to 500 units.