Discover our selection of aftermarket car parts across multiple categories. From wheels and tires to suspension, performance upgrades, and exterior and interior enhancements, find everything you need to take your 1979 Pontiac Grand Prix LJ to the next level.
What is the Bolt Pattern (PCD) for a 1979 Pontiac Grand Prix LJ?
5x120.65
What is the Center Bore / Hub Bore on a 1979 Pontiac Grand Prix LJ?
70.3mm
Does the 1979 Pontiac Grand Prix LJ use Lug Nuts or Lug Bolts?
Lug Nuts
What is the Thread Size on a 1979 Pontiac Grand Prix LJ?
7/16 UNF
What mods are other 1979 Pontiac Grand Prix LJ owners running?
Check out our Pontiac Grand Prix Build Threads to see real-world examples of how other enthusiasts are customizing their cars. From wheels and tires to performance upgrades.