Re: Gear ratio
Have to look at door sticker where it says AX . . The ratio can be anything like 2.55, 2.73, 3.08, 3.27, or 3.55 . . Those gears can be open or trac-lok also depending on code given . Usually 3.55 trac-loks were in wagons, limos, or tow package & known as "K" code rears . Have to check code on door of car or metal tag on diff. cover . . The rear is a 8.8" & can have 3.73 or 4.10 installed also, but will cause higher rpm at highway speed
my 1986 Grand Marquis LS... Rose...