I need to install a new firewall grommet for the wiper motor connection to the engine harness on my '72. The only thing I've read is of someone cutting the rubber and sliding it over the cable & then gluing the back side & putting it in the firewall. There's got to be a better way because that's not right.

I think i could remove the wires from the plastic Shell and then pass them through the small hole of the grommet, install the rubber grommet and then place them back on the plastic Shell. anyone??? or is everynone cutting the grommet passing the wires and gluing back with crazy glue??

Edited August 3, 20168 yr by jalexquijano

You've hit upon the two options.  The neatest way to carefully remove the contacts from the plug and pass the wires thru the grommet, then reassemble the plug.  Each contact has a small barb holding it in place that must be pushed down to back the contact out of the plug.  A very small jewelry screwdriver or knife point is a good tool.  Be sure to write down what color wire goes to each position in the plug before you start.  Be sure each barb is raised before you reinsert the contacts so they lock back in place.

just did what you mentioned! Now its back in commission! thanks!