I have a 87 Camaro SC with the 85MPH Spedo and . My friend has a 89 RS with a 185 spedo . Will I be able to swap a 185 spedo. with out replacing the cable or the unit on the trans.

 

our cars never came with a 185 speedo. some of the later ones had a 145 though. it should be all the same as far as i know. just disconnect the cable from the trans before you remove the old speedo. it will make removal-installation a lot easier.

 

I don't know if it is the same, but in my '91, you just pull the old panel and replace it with the new panel. Printed circuit board on back.

 

Ya sorry I F&^$ up on that one I ment the 145 MPH spedo. Do I have to change the part on the transmission that the cable screws into. thanks No mine is a 1987 SC

 

No need to touch the tranny. Just remove the old speedometer and replace it with the new speedometer. You unclip the speedo cable from behind the speedo with a long screw driver reaching up from under the dash.

 

Didn't the cable driven speedo's stop after 88? I thought 89 was an electric.

 

I think firebirds were different but in camaros it was cable driven up until 90 when it got the new dash design and the electric speedo.