Steering Column Problems

[67chops]

I am not sure if this is the right place to post this but here goes nothing. Recently shifting gears on my column, automatic, has become a real problem. Sometimes it gets stuck in R or D, other times it wont let me put in in L1 or L2 unless I shift directly into it from P. Also my left turn signal will not disengage after completing turns. No problems with the right though. Anyone know what the problem could be or the amount of work it would take to fix these problems. Thanks for anything.