According to CoolCats, '85/'86 taillights can be retrofitted to '83/'84 cars with modifications. There is no mention of going the other way. I have a perfect set of '83 taillights, and one of the taillights is damaged on my '86. Could the '83's be installed on the '86 with the same level of modification? I know the '85/'86 style is preferred, and do look better, but just wondered if it's possible. Thanks.
The metal taillight mounting panel was different so it’s the same issue either way. Ford didn’t make that type of swap easy at all.