Just a couple of thoughts:
If you replaced the OEM style bulbs with LEDs, you have to consider that LEDs are well known for causing hyper flash due to the lower resistance of the LEDs and the truck's computer sees that as a burned out bulb.
Fast flashing of turn signals is a time honored standard way of letting the driver know there is a burned out bulb somewhere.
There are tried and true methods of correcting this behavior.
Sometimes a resistor of some sort must be used inline with the LED bulbs to satisfy the truck's computer into thinking all is normal.
There are also special LED bulbs that take this into account and they have built in resistors.
For your brake lights, make sure you have the brake light bulbs inserted correctly.
LED bulbs must be inserted correctly because they are directional and will not function if installed backwards.
Your old style bulbs can work when inserted in either position.
Try inserting your brake light LED bulbs in differently and see if that makes any difference.
Lastly, I'm not sure it is best practice to openly post your personal phone number on an open Internet forum.
You may want to consider editing that post to remove the phone number.
Forum members can answer your questions here, like I did.
After you make a few more posts here in this forum, you can begin to use the private messaging function to privately hand your number out as needed without the entire world having that number.