grinding sound at speed

whenever i hit about 75+ mph on the freeway i get a grinding sound that seems to come from the front end underside, hard to pinpoint at that speed. i used to get this same sound from the rear till i replaced the driveshaft with a sye and tom woods shaft.

im at 4.5inches short arms, 4.56 gears and 33's oh and my spedo is a little slower then a stock one cuz of the gears

Try pulling the front DS and see what ya got...

ill give that a try later today