79 OLDS Regency 98 HELP I need........

I need the front window runners (channels or whatever you call it, the glass slides in it with the felt). It has become too loud in my car. Oh yeah, I almost forgot, it is a four door.

I cannot find anyone that sells an OEM fit. I have seen JC Whitney site but it has like 15 different measurements. COuld anyone please tell me which window channels I need?

I only the ones that face the door jamb. Not the top or the one by the windshield, just the back one I guess you could say.

BTW I am new to forum, I am an old car fanatic. I have a 1977 Ford F150 I bought 10 years ago for $800, and a 1979 Olds Regency 98 I bought three years ago for $450 (With 64K original miles!) It was sitting in a parking lot broke down for 5 years so it has some rotting going on. But I want to keep it! I have $2000 in it and she drives like a dream with cold AC, pwr seats, pwr windows, pwr steering, pwr brakes. It originally had a diesel, but the owner put a 1980 307c.i. in it after the diesel failed. It was a dealer swap I am told.

**ANYWAY** I need these window runners so I can talk on the phone in my car without having to yell, and say WHAT?? WHAT??? because of all the wind noise.

PLEASE HELP!!!!