In 1996, Ford switched over to thinner metric piston rings 1.50mm x 1.50mm x 4.00mm (for lower friction?) for all 5.0 including F150 & my 1996 Explorer 5.0 which is going in my 64 Falcon. All 302 up to 1995 used the 5/64" x 5/64" x 3/16" piston rings. The only difference that I can find is the...