Got an international 9400, steering is horrible

Im sure this isn't it. Check the shock bracket welds to the front leaf springs. I had drove one where it broke and it would wander all over the road.

For the ride, how old are the shocks on the truck? I bought a 9200i 2004 and replaced all the shocks helped a lot. I haven't done the cab shocks yet.

 

My 9400's steering takes more effort at slow speeds than a Cascadia or Prostar, but it isn't "rough" unless you are turning the wheel when stationary (something you should avoid with any truck -- doing so tears up tires).

I don't notice the steering wheel jerking when I hit bumps and my ride is pretty smooth with centramatics and recent shocks. But the steering is much more responsive than either a cascadia or prostar -- so I can sorta see "go kart." It can be a bit of a bear on rutted roads...

 

Jolts on bumps? Start with shocks like @77fib77 mentioned. Side to side shake at certain speeds? Generally an alignment issue or bad steer tire. Shake when braking? Bad tie rod ends. And these trucks aren't known for their turning radius. I've got a long 9200 and it takes 40 acres and then some to turn it around. Takes some time but you'll get used to it. @double yellow mention rutted roads. Yeah, those things will teach you to keep both hands on the wheel. lol

 

Replaced the leaf spring bushings on my old 9400. Made a huge difference in the ride and steering. Then replaced the p/s pump. Felt like a new truck.

 

2017 9900 IH EAGLE bought it new im on my 14 th set of steering tires 6 trips to 2 different allighnment shops replaced suspension bushings u bolts steering box power steering pump and on and on it goes it eats steering tires like i like candy bars lol it dives all over the place without warning have to have both hands on the wheel and slow down when meeting traffic the dealer says they havent ever heard of a problem like mine go figure lol . 880kl the worst piece of garbage i have ever owned in my life

 

If you want help, maybe post some info. The alignment reports, tire pics etc.

 

Sounds to me like not enough caster, maybe toe set wrong. Hell even the rear axle alignment could be off and pushing the front end sideways a bit.

 

The spring bushings need to be tight and lubed.
Alignment [all axle alignment if the steer tires are wearing funny] need to be good and the shocks need to be in good shape.
One poster mentioned centramatic balancers; a lot of guys have has success with them for excess shakes and vibration.

The entire suspension is always involved so rear suspension torque arns and bushings, etc. need to be tight and well lubed too.

Had a company unit where the driver complained about always fighting the wheel, 96K on a set of steers.

It took an all axle alignment and new torque arms on the rears to 'cure' the issue.