Originally Posted By RoadRunnerJD
Originally Posted By 6bblgt
iagree
for '69 a-body 70 series tires
polyester cord = Firestone
fiberglass-belted = Goodyear

I don't think Firestone had a fiberglass 60 or 70 series tire available as OE for any manufacturer until the '70 model year

the 70 series tires had a stripe from 5/16" to 3/8"

My new 1969 383 Road Runner that I bought in Sept of 1969 came with fiberglass belted Firestone Wide Oval red streaks. Lasted about 3,000 miles if I remember right! The buildsheet for my 69 340S Fastback Barracuda that I just finished restoring calls out the T75 Goodyear Polyglas E70x14 redlines. Only cost me $258/each for the repros!! I don’t know why anyone would order whitewalls on a musclecar back then??

My M-code Barracuda is all black, white walls will stand out better, my opinion and the dealer who ordered it too I guess. Besides at that time we all wanted raised white letters, bigger the better, if they weren't bought that way we used the paste to color the letters in. Nobody used red paste.