stonemade

Hey guys, new to the board hear. I have a quick question for you...i have a 2002 F150 Supercrew fx4 bought it used and built a little story.

truck seemed to bounce and shake once you hit 65mph +. and i mean bad...i've had 4x4's all my life, this isn't normal...then i noticed the front tires had strange wear pattern so took it in to check alignment...after running it twice they say it is perfectly aligned. so they rotate tires, saying the tires were worn due to underinflation (checked this myself - WRONG). well many miles later...it still bounced...changed the shocks and put Rancho RSX's, softened the bouncing slightly, but still major bouncing. took it to a tire shop to see if maybe it was the tires out of balance or something..he says the tires on back are shot...balancing wouldn't help...so i bought a couple new tires...and still the bounce and shaking! i don't know what else to do, and i really hate to take it to the dealer but i'm afraid that is the last resort...

anyone have any ideas what could be causing this?

 

LunaticSVT

I have driven a 03 SC FX4 and it was a little bouncy on the road. Not sure how bouncy yours is, but it is not going to be like a road car. It will have more play in the suspension than a car an most other trucks.

351w

has everything been checked on the suspension thoroughly to eliminate the possability of this being bad ball joints or bushings.
if the tires were spin balanced and they are good then the problem has to be hidden in a suspension part or linkage that has gone bad or is in the process of going bad.

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