1986F150Six Posted March 31, 2020 Share Posted March 31, 2020 I believe this is not the heavy duty one. This would be to prevent stress cracking. https://www.ebay.com/itm/NEW-OEM-Ford-Fire-Wall-Reinforcement-Kit-E3TZ-7K509-A-F150-F250-F350-1983-1987/164144985298?epid=1541188695&hash=item2637cdb4d2:g:pccAAOSwr9Reg2bW Link to comment Share on other sites More sharing options...
Rembrant Posted March 31, 2020 Share Posted March 31, 2020 I believe this is not the heavy duty one. This would be to prevent stress cracking. https://www.ebay.com/itm/NEW-OEM-Ford-Fire-Wall-Reinforcement-Kit-E3TZ-7K509-A-F150-F250-F350-1983-1987/164144985298?epid=1541188695&hash=item2637cdb4d2:g:pccAAOSwr9Reg2bW My truck had one of these (poorly installed). I still have it in the parts boxes somewhere I think. Link to comment Share on other sites More sharing options...
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