@parthiban,I'll try 35psi later but I agree, I can't see 2psi causing a rough feeling at the wheels.
@kenfoxy, hi ken, the thud seems to be from both front wheels.
It's kind of like something low down at the whole front is not as tight as it should be.
I posted here a while back about a bong sound I was hearing sometimes when taking off in reverse and sometimes coming to a stop.
This sound seems to come from low down at the front also.
Whether or not this is related I don't know.