you did well so far ,, the gold bolts comeing loose is a very common problem , and so are the shift tube bushings,, but another problem is the shift cable adjuster comes loose, located on the shift cable ware the shift cable mounts to the trans,, there is a clip , see pic below
number one in the pic above is a clip that you can release and slide up and adjust the cable , sometimes it slides up on its own and the shifter becomes sloppy , see if this is slid up or loose, once you have it adjusted you slide the clip down and it locks it into place.
we can go back and forth on this page
there is a release tab on the cable adjuster that has to be pried up with a pocket screw driver and then the clip can be pulled up ,, once you have the cable ware you want it , slide the clip down to lock it back into place...
the shifter will not lock into park ,, if the cable is out of adjustment it may not be going all the way into park , or not letting the shifter go all the way into park ..... a sign that the shift cable is out of adjustment is , does the shifter go into every gear , park , rev, nutrial , drive , 2nd, low ,, if it does not then its out of adjustment
if it does then --
well, make sure the brake lamps are not on all the time,,
or the shift lock out actuator and its bracket may be loose, both located on top of the steering column , on the top of the shift tube ,,,,also sometimes,, very rare , but there is a small lever in the shift tube that locks the shifter in park , have seen the pin that holds it in place come loose or fall out , or the lever itself is broken ,,,, this makes more sense to me ,,, you would have to lower the steering column to look at the condition of this part see pics below
its located about a inch from ware those loose gold bolts ware on the shift tube
to get a good look at the shift tube , its lever that locks it into park , and the shift lock out solenoid , you have to lower the steering column , the steering column is held in place by four bolts, 13mm, remove the front two bolts and remove the rear two bolts down to there last threads , and the steering column will lay down on the front seat ,,, then you can see the top of the steering column and the shift tube , and see whats what , and at this point you can even remove the shift tube and repaire it if needed , you will only have to remove the lower dash panel under the steering column , and also remove the white thin shift indicator cable , located on the bottom of the steering column , due to its very fragile and may brake when you lower the steering column , and thats it , I bet something is wrong with the little lever that locks it into park , either its pin has backed out , or its broken , very cheap parts , but takes some time to access and repaire
OK, SOUNDS GOOD
good,, if you have not found the part number yet, i can get it tomorrow when I get to my dealer
ok, looks like you have it handled, good luck