Comment: New Ford Ranger Challenge - Finalist

i have a 2009/10 ford ranger on dirt road- dust pours in every where shudders shakes ,told by dealer not to go over 40 k on dirt not realy aTRUE 4WD EXPECT TING TO MUCH !I TOOK MY 89 NISSAN TERRANO AT 90 Kphr
on same road not a spec of dust came in and good smooth ride.service manager said that a lot of contracting companies complane about same thing so this is normal cant get my head around this when a nissan 20 yrs older is abetter ride & still sealed better so much for new techknowlagey! does any one else find this with the 4wd ranger.