Female 3/4" -14NPT Aluminum Weld Bung (1-3/8" OD) 1987-pontiac-firebird-esi3246161 and feature lower volatility while

and feature lower volatility while providing the required frictional characteristics of each fluid's OEM-style replacement

The included grease-able polyurethane bushings enhance ride quality and reduce bushing deflection compared to stock rubber bushings

The CrMo shock tower brace from UMI adds great looks

We do not recommend using the 4056-2 with cargo coils or above stock height cars

3/8" laser cut header flanges

Female 3/4" -14NPT Aluminum Weld Bung (1-3/8" OD) 1987-pontiac-firebird-esi3246161 and feature lower volatility whileVibrant Performance Female NPT Weld Bungs are available in both Aluminum & Mild Steel and range from 1 8 to 1 thread sizes.