I have a 99 sport with 3.9 2wd auto, off the line i have a problem that feels like the truck is fighting against a wall.... shakes like hell and jumps. Is this the adative from MOPAR that i'm hearing about or am I in deeep DO DO? Only happens when i'm jumping from a dead stop. I have a 3" drop and a spacer plate ( was on it when I bought it, will change with the TB upgrade) and the K&N drop in. please help as this is a new one to me and i'm readdy to shoot student nurses frome a clock tower over this ( kidding LOL) wife says i can put no more with out legal ramafactions.....HELP!!!!

 

the friction modifier is for limited slip rears only. unless you order your truck like that from factory or a previous owner did, i doubt you have it otherwise.