Direct Sheetmetals 48-49 Plymouth Firewall comes with a 4" setback but is available with custom setbacks. (49 Plymouth Firewall pictured).
Direct Sheetmetal kits are made from 16 and 18 gauge, cold-rolled steel and are all hand-formed in their shop.
Each kit contains mounting hardware and an easy-to-understand instruction sheet. Every car or truck is different, so slight trimming and re-shaping of some parts may be necessary to get a correct fit.