I am finishing up an 86 Fiero chassis for my kitcar. I just noticed the white plastic seal at the rear of the brake booster is cracked. It apparently is the seal to the firewall that snaps into place. Can this part be bought separately? Has anyone simply silicone it over?
That booster was only used on the Fiero so I doubt your going to find a new extension tube. The Fiero parts book doesn't even show it as a part you could have purchased. You're going to have to fix the one you have or find a Fiero in a junkyard to get the part.
Just fyi, you don't have to disconnect the brake lines to remove the booster, you unbolt the master from the booster and move it forward with the lines attached. Then the booster comes right out. Trust me, I have probably removed more boosters than anyone on here.