I disconected the battery for awhile to replace the ground cable when i hooked the battery back up it seems the idle is off and it is now stalling at low rpms

Possible bad Idle Air Control valve. (same issue with my mustang.)
Replaced the IAC and everything smoothed out perfect.

when power is removed everything reverts back to factory settings.drive the truck for awhile it should relearn .
when i change a battery on newer cars and trucks i hook up a back up battery to a plug that is live with the key off. but you have to be very careful as the positive battery cable will have power on it if you don't have insalated tools be very careful.

sounds like you are on the right track. Hook the jumper cables up to the dead car first. The red cable should go to the jumper terminal as you mentioned and a good place to hook up the black cable is the bolts on the strut tower.

then with the other car running hook up the red lead to the cars positive battery cable and then the negative to a good ground. Let the two cars sit for about 5 to ten minutes to give the dead battery a chance to charge.

Once the dead car is started let it idle with the lights turned off for at least 45 minute to an hour or drive it for the same amount of time with the light on (I assume you will be driving in the dark) or if its day time drive it for 30 to 40 minutes with the lights off. This should be enough time for the alternator to charge the dead battery.

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Disconect the battery completely both cables. let it sit disconected for a while 20-30 minutes. Or if you feel safe doing this which it is safe. Both cables removed from battery toch them together away from the power source. This will send any and all left over power stil in system straight to ground and you will be clear to remove steering wheel. Do what you have to doo and the very last thing is to hook up the battery negative cable last.

HI disconect battery cable and recconect start engine let it idle for 10 minuts do not touch gas peddle let it relearn idle strategy if this doesent help try cleaning throttle plate by using carb cleaner or the special cleaner whit engine of open throttle spray cleaner using a tooth brush scrub throttle plate till clean

Try cleaning your throttle body, then disconnect the battery to clear the memory.

what you described sound like your vent tube on your tank is plugged so what happens is that your fuel is over pressure causing it to foam thus starving the carb and running your float bowl dry. I would start by looking at the tube that comes off the tank. as far as your battery is concerned check to see if you have a loose ground or a positive cable leading from the altenator and from the engine to the fram ground cable. if the altenator is charging but the ground is loose then the battery will not get replacement voltage. if there is a loose positive and ground cable loose from the altenator then once the voltage on the battery goes below 10 volts the car will stall because there is not enough voltage to energize the coil.

The throttle body needs cleaning. It has some carbon build up, and when the battery went dead the computer lost its learned values, one of which is base throttle position. Now its reset back to factory specs, not accounting for a dirty throttle body. Seen it a million times

if it dies when it comes back to a idle check the idle air control motor and passages in the throttle body

there is a fuel pump ground that is supposed to be hooked directly to your negative cable on your battery make sure it is hooked up. could have been accidentally unplugged