does anybody know of a bonnie with rear disc brakes? did gm make a bonnie with rear disc? any parts interchange?

GM did not make a bonneville with rear disc brakes til 2000, but they do not fit the 92-99 body style. many members have asked this question, and the general response is it is not worth it. The rear drums are more than adequate for stopping the car, and if properly adjusted with good front rotors and pads, they perform excellent.

That being said, I believe a couple people are still looking into options, and I believe one has attempted and succeeded, but I believe it was on an earlier model. Used the search feature and check out the results.

No parts directly interchange.

2000-2005 have rear disk, but they won't fit yours.

It will have to be totally custom (nobody has done it).

I personally suggest upgrading to a premium slotted rotor and ceramic pads (not drilled rotors), then upgrade your rear drums and shoes to quality name-brand parts, and make sure they're adjusted properly. You won't have any complaints at that point.

that sucks, disc look so much better under rims than clunky drums, and the ease of maintance