Man - if I don't get this fixed soon...My '99 3.0 4X4 Auto Ranger is going to tear itself apart! It shifts up AND down like getting hit by a truck! Pull out in the morning - Bang! it hits second. Slow down at the corner, Bang - it drops back to first. Going down the road, it bangs into each gear and bangs nack down when you come to a stop...absolutely no slip into the next gear.
Got any ideas?

 

hmm valve body maybe? sounds liek the valve body has got some problems

 

check the fluid?

 

check transmission fluid level
drain, flush and refill transmission with new fluid
seek professional help

 

Thanks for your suggestions - I'll try those things this weekend.
I've been told before to seek professional help but usually by people that know me!
=o)