03-06-2020, 06:38 AM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
Thanked 136,981 Times in 22,944 Posts
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The first 50 Thunderbolts had fiberglass front bumpers and matching gravel pans. NHRA said "no more fiberglass parts - must be metal" so Ford used aluminum and retrofit them.
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