Oil drain plug?

[ron350]

My 96 Regal uses a metric drain plug with a built in o-ring seal instead of a copper or nylon washer.
Does GM make a similar drain plug with built in o-ring for my 75 Chevy truck with the ½ x 20 threads per inch drain plug?

 

[m2200b]

You can check dorman's site dormanproducts.com for your truck but its the same plug used up to 96 on most GM cars and trucks dorman motormite 090-052. See also cgenterprises.com
I assume you can get one at any GM dealer. The only issue is whether it's oversized by now

 

[ron350]

Thanks m2200b for the links it looks like no one makes a 1/2x20 drain plug with a built in o-rong.
Looks like I will try the rubber metal washer #2603.

 

[Mickey_M]

http://www.imperialinc.com/grp346.shtml

http://www.cgenterprises.com/

http://www.nutsandbolts.com/oil-drain-plugs.html