Truck brake question

My 2007 2500 Ram is pulling to one side on hard braking. There is no noticable issue with regular braking, only when I have to get on the brakes hard. The pads were changed recently and I hoped that would solve it but it was the same before and after, so not pad related. Recently it has gotten worse. Could this be from a shock on one side going bad? They are original to the truck which now has 188k miles on it.

I have always done my own brakes but am not a mechanic, possible a caliper is sticky, have to clean and grease it?

Almost sounds like a classic bad brake hose. I fix a lot of older chevy trucks with a similar issue. The brake hoses collapse internally and allow pressure to get to one caliper more than the other, slowing one wheel faster than the other causes the vehicle to pull to one side.

Ed I have the same year truck. I have just had front end work done . I had dodge death wobble, happen , Mentioned it , got a lot of good reply's. I replaced front shocks , stabalizer bar. Had them go over it good. . I intend to give it a good drive today, Feel much tighter, on the steering. 14 years old , probably getting a bit worn. , Mine is low milage as well, great truck, for my needs. old243

It was used too much when it was new.

Are the caliper slides lubricated? Or maybe the caliper piston on 1 side sticking. But I would replace the rubber brake hoses if original.

Caliper slides and pad shims need to be properly lubricated, all the rust where the pads go in the bracket needs to be cleaned off so the pads can slide freely. Press the caliper pistons in to make sure they move okay, compare to the other side if necessary. If all that checks out, replace the brake hose. Beyond all that, if it still does it, check the suspension. It would be something that flexes/moves under a hard load, a simple shake down may not reveal it. Something like a bushing, possibly a shock, etc. If all that checks out time for an alignment.

Rear brakes can make them pull also. Or I should say, make some think its the front making it pull.

Dodge rams are notorious for brake lines causing the calipers to stick or brake un eavenly . It might be as simple as taking some pliers and bending the clip that holds the break line out a little loosening it . Rust often builds up between the clip and hose constricting it .

X2 have had it happen a couple vehicles in the last few years... cheap easy fix to see if it remedies the problem .

Thanks guys. Brake hose replacement fixed the problem.