Having problems with the taillights on my '72 240. blinker on 1 side ,breaklight on the other side, T/L on both sides, good signal with test light on both sides all functions until bulbs are put back in, grounds appear to be OK. any ideas?

Having problems with the taillights on my '72 240. blinker on 1 side ,breaklight on the other side, T/L on both sides, good signal with test light on both sides all functions until bulbs are put back in, grounds appear to be OK. any ideas?

Normally problem is at the contact points inside the sockets

If not try bypassing soldered wires covered with black rubber tube.

Even though they look fine, there might not bb no current flow.

Very common problems.

Esprist