I replaced the distributor and it is firing on the right, but not on the left any sugg?

I had to replace the distributor on my ford truck. Because it was shearing off. Now the truck won't start. We're getting fire on the drivers side, but not the passenger side. Any suggestions as to what we're doing wrong

What year? Model? Engine?

The only way I can see this even happening is with the individual coils on each spark plug. Is there a plug (or wires) you forgot to connect?

Its a 1977 400 ford motor with a new distributor in it. Do you think it might be the timing chain?

The timing chain is not involved in making all of the cylinders get spark. It sounds like a bad distributor cap.

GENERAL INFO WOULD Help US Help YOU. IF HALF WORKS AND THE OTHER DOES NOT, ID DOUBLE CHECK THAT THE WIRES ARE GOING TO THE CORRECT CYLINDERS.