Brake Booster Firewall Plate
$29 Shipped by itself. As of 2023 these are included FREE in FULL kit orders (if in stock which is most always the case)
This will make mounting an aftermarket or s10 booster much easier. Put the plate on outside of firewall, mark holes and drill. Then weld this plate inside firewall. S10 boosters are slightly different than aftermarket, so that is why there is a slotted hole in one side. So works with aftermarket and s10 boosters.
Measures almost 8x9" and is 11g steel.
Typically in stock, if not be a week or less lead time.