Here you go, Craig. I had prepared something for JB just the other day. Let me know if you have any questions!
We use an RV mounted towbar with the brackets on Amphi. The initial theory was to minimize the look and water drag when not in tow, but to provide decent structure so that the weak front bumper bracket would not see too much load and so I wouldn’t pull the front end off of the car. She has about 73K miles of "towage", so far. I have attached a couple of photos, plus a pic off of the Autocad file. If you have Autocad I can send the original. As you see the actual towbar attachment is held on w/ quick release t-pins, so only the stubs remain permanently. As I did this originally when the car was positive ground (and the Amphicar braking circuit is open without the key on), there is a separate wiring harness for running light, brake lights, turn signals and a supplementary braking system I use. This Mil-Spec plug under the RH headlight is a lot less intrusive that the over-hood wiring tube I used to use.
This was all originally done when Amphi was still positive ground, Craig.
For a variety of reasons (the Amphi brake light circuit is open with the key off, I didn't want Amphi headlights on when running lights were used, and not wanting to cross the positive ground Amphicar with the negative ground RV), I ran a separate circuits for the brake/turn and running lights. The initial thought was to use removable magnetic tow-lights mounted on the engine cover, but I eventually decided that was not "elegant" enough, so mounted GM mini press-in bulb sockets into the Amphicar tail light reflectors (see attached). The wire is a standard 4-wire tow harness with the larger (brighter) bulb the brake/turn signal & the smaller bulbs the tail lights. All are powered from the RV.
Yes I did Larry! Thanks! My daughter will be up here visiting from Texas in Sept so not sure we can make the trip down but we might go over to the coast for a few days. We stay in Yachats alot so maybe we can buy you folks lunch on your way through and check out your Amphicar?
Gord... Yea I noticed it was a bit different and was able to clean up the ring on my speedo and reuse it. No worries...
Want to thank you again Larry for the cad files and the pictures. Got everything printed out and plan to make one up this winter. You really should make these as a kit! It'd be lots easyer for me that way anyway! You did all the hard work for me already looks like though.