bigpatsgt

Do I need to purchase a speed calibration kit when I buy my 3.73 gears? American muscle sales just gears or a combo kit for gears and calibrator. Thank you.

1sloblckgt

Do you have a tuner?

bigpatsgt

No. I have no tuner. Everything is completely stock except what's in my signature.

bjh061487

you need the calibration if you don't have a tuner... if you want to get a tuner then get one (e.g. Diablo or XCal) and then you won't need the calibration kit, but you will need one or the other if you want your speedo and odometer to be right

bigpatsgt

Thank ya'll but one more question. Is this something that will put any lights on my dash and should I get the bearing kit too while I'm at it?

1sloblckgt

You will not get any CEL's.

My_1st_Stang

New speedo gear worked for me...$7.00

BlackMage

yea get the new speedo gears, and you shouldn have any MIL.