Damemorder - you can upgrade your fronts to the larger 90'* PA. But you cant use 15" wheels anymore. Dont remember the specifics but its been done on a few Lesabre T-types. Must be some Bonneville guys have done this too ? Then an adjustable regulater to get a little more pressure to the drums has been said to make a big difference.
Question - did the 92-99 H bodys have larger disc than 86-91 ? I realize I should know this having both but have never took the time to measure or really check it out when working on one.
The LSS has great brakes from my experiance.
86 LeSabre coupe, 90 Regency, 90 Ciera Cruiser and the 97 LSS have a new stable mate............06 G6 GTP coupe, white with taupe & black interior