What causes tramling and how do you fix it?

[juiced_94gt]

Well my whole front end is NEW with a new aligment! New: 03 cobra a-arms, steering rack, solid rack bushings, MM solid shaft, pump, bumpsteer kit, the only thing not new is my 5 yr old illuminas which i think might be going south (would this cause it)... It still just feels like it want to do what it wants when im driving on the freeway, when I put the A-arms in it felt ALOT tighter but after a week it feels the same as before, my car has ALWAYS done this and it drives me nuts! if it drove nice I would buy a blower next week! My friends 03 cobra drives straight as an arrow with a whacked out aligment!

 

[Chythar]

Tires can do it as well. The Kumho Ecsta Supra tires I used to use would track with every crack in the road. And you know how smooth our roads are here in SoCal. The Ecsta MX I use now are much better.

 

[HISSIN50]

Agreed with the tire thought. What alignment specs did you go with?

Freeways generally are not rutted up (the divisions are perpendicular to the rolling plane of the tire).

 

[79'293stang]

Tires can affect this alot. My old 96 cougar was all over the road when I bought it and felt like it was driving me most of the time. Bought 4 new tires after a random blowout and it was like driving a completely different car...

 

[blksn955.o]

I have a close/like setup on my mustang right now and wonder what specs to go with? Roads her in MO SUCK (2 worst in nation IIRC behind Detroit).

I have bullitt springs/shocks, 03 cobra A arms, new TRE, stock caster camber plates and run a 9.5 wide rim in front with 275/40/17's.

Should I look at a bullitt align spec or 03 cobra spec if there is any difference? I would think the bullitt and 03 cobra would have different specs from one another and different from the 94's stock specs correct?