Alright guys i have a 87 ranger and works good when she cold but one u starting driveing or hit dump u hear the like clucking/ binding noise or if you floor it does it could it be the tranfercase or drive shaft or rearend it not a constant noise unless iam hitting bumps or giving it gas

 

Open the hood
Start engine
Foot on the brake
put it in 1st gear and let out the clutch a bit or if auto, give it a bit of gas
Watch for engine movement, rising up on one side
Repeat in Reverse gear.

Engine and drive train warmed up, at least a 10 minute drive
Engine off wheels blocked
get under truck and try to move drive shaft, u-joints can loosen up once warm
Have some one bounce on the rear bumper/bed while you are under it