In a message dated 97-12-13 10:55:54 EST, you write:
<< I just purchased a base model '97 4x4 Dakota. It came with those little
P215/75R15 Goodyear Invicta tires, with 15x6 rims. I decided to get some
larger tires, going with Chaparral LT235/75R15 (which do not have an
aggressive tread pattern). I have noticed more vibration with
the larger tires. I understand that the transition from passanger to
light truck tires will change the feel, but how much should LT tires
change smoothness of the ride? [The ruffness appears to greatest at
speeds above 50 mph and when decelerating.] Any ideas on what could be
causing increased vibration? This is essentially my first truck so I am
unfamiliar with what would be considered normal vibration by any long time
truck driver. >>
You shouldn't have a vibration after this swap. I took the 215's off my
Dakota and put some 225/70's on it and there was no difference. (At least
until I went around a corner. vrooooom! :-) ) Possibly one or more of the
tires were not balanced properly. There is also the possiblity that one or
more lug studs were over tightened warping the rotor.
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