Braking question Dodge Ram

Hi guys. Question on my Dodge Ram 3/4 ton. When brakes are applied, the thing pulls to the left considerably. So I did some inspection and everything looks fine, slides fine, I took everything apart. Calipers slide freely, and the pistons move freely but only thing I noticed that was weird and seems to explain my problem is when the brake pedal is released, the driver side caliper retracts approx. a few thou, while the pass side retracts considerably more, about .040. What the heck? Why is this happening? Anyone have any insight to this? Thanks! (I also put new front brake hoses on as well and that didn't help).

What year is it ?

I would look at the rubber line , it's probably collapsed internally.

Truck is 1999 Ram 2500 V10 Auto tranny 4WD.

As far as the rubber line, I replaced that already thinking that it was collapsing as well, but it did not help one bit.

if it pulled left you need to look at the right side brakes not the left.

Well, that is the thing, the right side piston retracts way more than the left, which seems to explain the problem, but why?

Quote:

---

the driver side caliper retracts approx. a few thou, while the pass side retracts considerably more, about .040

---

That explains the pull as the right side pads are squeezing the rotor after the left side has already started squeezing.

I dunno, lots of possibilities - unequal piston friction in the calipers. unequal slider friction on the pads. Unequeal anti squeal goop on back of the pads. If you replaced both brake lines, look upstream at the hard lines and dist block. could be a kink or rust.

You could just keep throwing parts at it or buy a brake line pressure gauge and see if the pressure is equal on both sides before and after letting off the pedal.