Found them on the spare tire cover, my next question is what gear ratio is equipped with the F83 code and I also have FLT, what is this? The other two are FE1 and FE9 those I found.
Thanks

well this is quite interesting...my 99 bonne has the 2000 option for a performance axle. The F83 RPO code associates with a 3.05 final drive ratio. thats alot better then the 2.84 I thought I had cause of the column shifter.

FE1 is your suspension and FE9 is just a general code for emissions.

There is a techinfo that has most of the RPO codes for the Bonnevilles.

Yea I found FE1 and FE9 but I had to search pretty long to find F83 which is on my RPO list. Its actually an option for 2000 with a 3.05 final drive, Its pretty cool that it ended up on my 99 I guess this explains the FLT before the F83 because it just says option.

Whoever keeps up on the techinfo might wanna add this to the RPO list because the spot for F83 is empty. [/img]

I think the F83 is the 3.05 for the 4T65-E which came in the NA cars in 98'. */C cars got the 4T65-E in 97'.