I just drove my XJ for the first time after buying it it's a '88. when I drove it there is alot of clunking & squeeling noise comeing from the front end axle area. anyone got any idea what that might be.. also need to know if it will hurt anything to run 3.77 gears up front I have 3.55 gears in the back. the reason why I ask if there is something wrong with the fron axle I have another front axle with 3.77 gears in it.