I got a 145 mph cluster and want to replace my 85mph gauges.How do I keep the milage right?can I just take the face off and roll it back and If I do do I have to get this certified in someway to be legal?Also can I swap the 145 gauges to my 85mph cluster?(white part)I kinda messed up the back of the white cluster on the 145 set.Everything looks the same.Anything else I should know???1986 iroc.thanks

 

I just put a 120 cluster in my formula instead of an 85.. Yes you can put just the speedo unit in your old cluster.. To keep the mileage the same I took the odometer unit out of the speedos and swapped them.. It's just a few screws. Turning it back would be harder.

There shouldnt be anything else you need to do. Should be a direct swap.. I had questions when I did mine. The first 120 speedo I put in read wrong. But it turned out to be a bad speed unit. The second works perfectly with no other changes.

 

So if u put the 120 guages in the 85 mph pod it will ready correctly? I thought it was harder than that, could u explain tha process for me please?

 

is that the same for the 145 u dont have to redo ur speedo so that when ur goin 50 it wont say 40

 

It's easy to roll the numbers if you take them out. This of course is only legal in order to show the CORRECT milage when swapping gauges. It's probably easier just to take the numbers from your original speedo and swap them into the 145 unit.

 

all 3rd gen camaro speedos from 82-89 are a direct swap, just plug and play. many states dont even keep track of the mileage on cars that are 10yrs old or older, titles just say odometer exempt or the like.

 

I have done mine a couple of times, granted your ding a camaro, but it should be similar, remove, swap Odometers, and replace...

remember to wipe everything cleen inside your dash so not to find fingerprints tho

John

 

just swapping the rolls sounds easy enough,so i will just do that.thanks for the help.