Stalling when backing up and parking

[Paulie Paul]

I recently had my trans rebuilt and the intake manifold gaskets replaced now I noticed when I'm trying to park or cut the wheels all the way or even go in reverse that the vehicle stalls out any help would be gladly appreciated

 

[Bain64]

I may not be able to solve this, but will try to elicit more information... What year? Motor size? What trouble codes does a scantool report? Did you mention the prior repairs because you believe they are linked? We need lots more information.