bad bump steer

[ilikemud]

just finished doing the ball joints and rest of the front end on my 78 blazer i replaced everthing but the shocks and the 31in. tires... and now it seems to handle worse than it did before... when the wheels are straight there seems to be a dead spot before it will turn but only while moving and it has the worst bumpsteer i have ever witnessed!!! any help PLEASE!!! new steering box, no frame crack, all new tierods, wheel berrings, ujoints, seals, rag joint ok. dana 44 8 lug, could the axle have the wrong caster angle??

 

[84_Chevy_K10]

Lift or no lift? Swaybar or no swaybar?

 

[pauly383]

Stupid question, but did you do the work yourself, and afterwards was it aligned ? Just from what I read I suggest rechecking everything, and if it wasn't aligned , get that done . /forums/images/graemlins/k5.gif

 

[bigburban383]

Do you even have a steering stablizer on there?

 

[ilikemud]

yes there is a swaybar, poly bushings. there was a dual stabilizer on there and i replaced it with a single cause both were shot. yes i did do all the work myself then had the whole front end alligned at a reputable shop. not too sure how much lift, either 4 or 6 inches... longer brake lines, and raised steering arm... stock draglink and pitman arm (everything is level)??

 

[Pookster]

Ahh yes, lifto-bumpstero, very classic syndrome on these trucks.

The softer the spring, the more bump steer you will have.

Depending on how your spring sits, you might/may be able to use a different combination of Z links, droped or raised arms/pitmans to get the proper angles. Even then I dont think most people can get rid of all of it.

Which sway bar do you have, and did you use a ORD disconnect kit?

 

[ilikemud]

well i am not sure what sway bar...but it is more than an inch thick and solid. as for soft springs... i have been on steel wheeled farm tractors that have a softer ride! the steering arm says skyjacker on it... i will go measure how tall it is now... but it is practically level with the pitman arm... and the steering isnt lessened when turned to one side...

 

[ilikemud]

well i measured from the flat top on the drivers side knuckle to the top of the flat on the steering arm where the 3 bolts go to secure it to the knuckle, and it is a hair 3 inches tall... from the top of axle tube to the top of the steering arm where the draglink bolts is a bit over 8 inches... i am getting ready to just part the truck out and start with something new... not a disgarded project... please help if youu can!!!

 

[ilikemud]

?any one?