Join Date: Feb 2009
Location: Largo, FL 33774
My first guess is that there is a bad circuit board on the cluster. If the speedo works and the odos do not, it means the board is getting a signal from the VSS, but it is not getting to the odos. If you need a board, I have a couple.
The fender is easiest to do if you get one with the brace (not wheelhouse) and the hood hinge attached. You have to unbolt the hood on the side to be swapped, detach the hood strut at the fender (brace the hood), remove the two rows of screws around the wheelhouse 10 & 13mm, the corner of the core support 10mm, bumper cover 10mm, remove the headlight mount 10mm, two beside the vapor cylinder 13mm, one at the rear trianglulators 13mm, one under the foam at the end of the rear hood seal 13mm, one screw under the fender Phillips, and the two at the door hinges 13/15mm (open the door). Make sure you save the shims. You may have to loosen/remove the wheelhouse extension 7/10mm to get the bumper cover low enough to get the fender off.
1991 OCC 461 (.030 over 454) BBC, 3.23 posi, flash to pass, drop spindles & springs, Impala rims, Hydroboost, Recaros, MOMO/wood SW w/QR, custom wood shift knob, Pioneer DEH P77DH
1992 OCC now with 5.7 tbi, DEH P77DH
For a parts list, check https://www.impalassforum.com/vBulle...ion-parts.html