Are you saying we can bolt up the aluminum spindles?

That my friend is the million dollar question. Surely the answer must be yes, only which ones will fit correctly. If the Park Avenue had 12" brakes then those spindles, calipers and brackets are good candidates. The 2000+ Bonnevilles spindles likely will also work.

I'm not sure if the W Body ones will work correctly. I have a set, given enough time I will check them for fittment. If they fit then I'll install the F Body calipers and brackets but use my existing hub/bearing assemblies to ensure my TCS and ABS function correctly..

Cheers,

I hope they fit Foghorn, and im sure several other Bonnie owners do too! this could be a major BRAKEthrough MWHAHAHAHAHA....*clears throat* im done now.

me too i would be interested in a upgrade

I think you would most likely have clearance issues with your wheels, i know the W-body upgrade wont work with the stock crosslace wheels, so you might take that into consideration as well...so upgrade both!

So, we may be able to upgrade to aluminum calipers if the aluminum spindles bolt up?
Any by spindle you mean the piece that the wheel bearing unit, strut, control arm, and steering arm(?) all connect to?
I'd be interested in switching to aluminum componets if I could keep the same size disks.