My 95 doesn't like being put into 4wd at a standstill, whereas my 98 doesn't seem to mind. They both do not like to release at the axle disconnect at road speed, they let go after a few miles, hard, it's like taking my foot off the brakes. The 95 gets all grindy if I engage at a standstill, once I start rolling. I can engage anywhere up to about 60 mph, no problem, as long as the road is straight and foot is off the throttle., havent tried faster.Firm steady pressure, no limp wristed hand on the lever, but I don't pull it in like it's been hit by a sledgehammer, either. dead stop +- about 1/2 mph in and out of low. make sure all your tires are the same size and profile, if you're getting any grinding while shifting at speed, 2h to 4h. Shut the motor off and then put into park or neut if you get hung up in trans case neut, resist the temptation to reef it into park to stop things from grinding!!!