3800Pro Forums banner

rear main seal

  1. Leak @ Flywheel?

    Cooling System
    new guy here... any help would be much appreciated! I have a 98 Regal GS (s/c 3800 SII). car has almost 190K mi, driven by an old lady till I got it @ 125K. still a dex-cool dog, running Royal Purple full syn oil. about a year ago (less than 5K), I replaced UIM and LIM gaskets with FelPro...