[shorod]

I really doubt that brakes are reason for the symptoms you describe in the original post, but I suspect that there's a reason you are leaning that direction. Please share what you've recently discovered that caused you to look towards the brakes.

For what it's worth, if it were an intermittent brake lock up, I'd be looking more towards the rubber brake hoses than the calipers and wheel cylinders, but again, I really doubt brakes are causing the "heavy jerking".

-Rod