Adding rear seatbelts requires a significant aftermarket modification, far beyond a simple bolt-on installation. This involves:
* Finding a compatible rear seatbelt assembly: You'll need to source a used rear seatbelt assembly from a 1999 Jeep Wrangler that *did* have rear seats, or possibly from a similar-year vehicle that has a compatible system. The challenge here is finding one in good condition.
* Fabricating or locating mounting brackets: The biggest hurdle. The frame likely lacks the necessary mounting points for the seatbelts. You would need to either find aftermarket brackets specifically designed for this purpose (if they exist – they are not common), or have custom brackets fabricated by a welder or metal fabricator. This requires precise measurements and welding expertise to ensure safety and proper function.
* Wiring (possibly): Depending on the year and trim level, the wiring harness for the seatbelt warning lights might need to be added or adapted. This is an electrical job that requires some expertise.
* Professional Installation: Due to the complexity and safety implications, it's highly recommended to have this modification done by a professional mechanic or automotive upholstery shop experienced in Jeep Wrangler modifications. Improper installation could compromise safety in a crash.
In short: It's a major undertaking, not a simple DIY project. The cost could easily outweigh the benefit, depending on labor costs in your area and the availability of used parts. Consider whether the expense and effort are justified compared to simply accepting the lack of rear seatbelts. Remember, safety should be the paramount concern.
