Stalls when placed in gear

[tropicaltan84]

My 84 720 pick up starts and runs just fine until I put it in gear then it dies immediately. Changed coils, checked vacuum lines, changed torque converter. Any ideas?

[Dattebayo]

Does it only happen when the engine is cold or at all times?

[tropicaltan84]

Happens every time. Can rev it up and quickly get to neutral but then it stalls when shifted into drive.

[PapaSmurf2k3]

Does it jolt the car hard, like the torque converter is already locked up?

[Dattebayo]

What I meant specifically is what happens after you leave the car in neutral for like 10 minutes as it warms up, and then shift it into gear?

[tropicaltan84]

Hot or cold it starts, runs, idles, accelerates in park or neutral and stalls when shifted into reverse or drive,

[goody90q45]

What's the rpm of the engine in neutral at idle, cold and warmed up?

[tropicaltan84]

No tach but stalls at normal idle or revved up.

[PapaSmurf2k3]

I'd start with the simple stuff like checking the timing and trying to adjust the carb for optimal fuel/air mixture.

[Dattebayo]

stalls at normal idle or revved up.

I don't understand what you mean by that. Clarify please?

[tropicaltan84]

I mean that when I shift from park to reverse or very quickly bypass reverse and shift into park the engine stalls out whether I'm letting it idle normally or giving it more gas. I think something is going wrong in the transmission.