What would cause a truck to idle good but when put into gear it dies?

Is the check engine light on? If so, find out what it is and whether or not it's related to the problem. Also, you could have a problem with Lock-up not releasing when coming to a stop. I suggest that you take your truck to a professional shop to have it diagnose correctly.

scan codes and then ck ipr and icp pressures. these are very important on these trks. how mwny miles do you have on trk?

I understand the question was posted nearly 4 and a half years ago, but has this issue been resolved?