BLACKJACK57

My Son Has A 2000 Ranger 4x4. Thought He Dropped The Clutch As It Would Go Into Gear, And Drive Shaft Would Move A Very Little And Then Stopped. It Seemed Like The Drive Shaft Was Hitting Or Catching On Something And Wouldn't Let It Continue Moving. It Didn't Seem As If It Had Enough Power To Turn. It Made A Whirring Noise, So We Replaced The Clutch. Seemed Like A Very Soft If No Clutch, So We Bled The System. No Luck, So We Replaced The Master Cylinder And Slave And Hydraulic Line. So We Have Taken The Transfer Case And Transmission Up And Down Several Times. Now After Bleeding The System Several Times, The Clutch Pedal Is Better, The Transmission Shifts Into Gear, But The Sound Has Changed. The Truck Can Shift Into All Gears, But The Higher The Gear , The Higher And Faster The Noise, And The Truck Will Not Move At All! The Drive Shaft Will Not Rotate As Needed, And Now We Can Not Get The Transfer Case Down To Work On It Or To Check To See If That Is The Problem. We Didn't Have A Problem Getting It Down Before. What Have We Done? Have We Forgotten Something