I have 68 camaro coupe. I need to remove the rubber seals the go down the side and top of windows. They are in good shape so I would like to remove so they can be reinstalled. I need to do some welding in this area which is why they need to be removed. I have done a search but found nothing on removal.

If they are original, I think they were held in place with a few dabs of weatherstrip adhesive. If they are original and in good shape, you definitely want to preserve them. Foam repops are $50, latex repops are $125, and NOS are $1000 or more.

I have an original pair that are undamaged. One side is soft and pliable as new, (and on the car) The other is firmer, less resilient. (and off the car) I was told a regular application of baby oil on them will soften them up, so I oiled them 2-3 times a week for a month or so. If it made it softer, I can't tell. Anyone have other suggestions?

Contrary to popular belief, baby oil does not come from babies!
It is a petroleum product made of mineral oil and fragerance.
I thought petroleum products where bad for long term use on rubber?

Anyway, the best rubber care product I ever used on door seals was from the BMW dealer and is called "Gummiphlege" (which just means rubber care in german) which I think is silicone based. Really any rubber care product from a major manufacturer would be better than having your rubber smell like a baby.

Well, I have to admit, they do not have diaper rash.

When I was a lifeguard in college, we used baby oil with iodine mixed in. (actually, it didn't mix...you had to shake it up every time to get the iodine in suspension.)

dish soap and water mix it extra soap. put in a spray bottle like your old window cleaner bottle. spray both sides it will slip better than k-why. puts them back in great new or old ones.