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View Full Version : Backing up sucks with a flat 4 plug!


jberylec
11-03-2008, 02:24 AM
Ok, I've seen a couple threads on this, but haven't found an easy fix yet. Can anyone help? I have an '05 F-150 and the towing package has two plugs, the flat 4 and the big round one (Don't know the name).

My 2001 trailer has a flat 5, so my truck is missing the reverse pin. Is there an easy conversion kit or adapter?

Does my big round plug include the reverse pin? Because I know I can buy an adapter to plug the flat 5 into that one.

I know I can flip it upside down and turn on the lights, but this is a pain! :(
Thanks in advance!

macrogp18
11-03-2008, 02:36 AM
Yes Wesbar makes the 7-round to 5 flat adapters. You can get them any place that sells trailers, even Kragen, Wal-mart, U-haul. places like that.

wakolman
11-03-2008, 09:22 AM
Does my big round plug include the reverse pin? Because I know I can buy an adapter to plug the flat 5 into that one.



Yes it is included in the 7 pin RV style plug. The adapter will work. http://www.delcity.net/delcity/servlet/catalog?parentid=633119&page=1

coz
11-03-2008, 09:24 AM
I have a 150 too and I use the round 7 to 5 flat in my truck.

http://images.marketplaceadvisor.channeladvisor.com/hi/59/59048/7to5traileradapter2.jpg

T Scott
11-03-2008, 10:04 AM
The 5 pin should solve your problem, but in a pinch you can still make your 4 way work. Simply unplug the trailers 5 way from the trucks 4 way. Flip the 5 way over and plug it back into your 4 way. ( the 5th plug or reverse power supply is now inthe second hole on the 4 way.) Turn the lights on in your truck and that will power the solenoid actuator and prevent the wheels from locking up when backing.

coz
11-03-2008, 10:24 AM
The 5 pin should solve your problem, but in a pinch you can still make your 4 way work. Simply unplug the trailers 5 way from the trucks 4 way. Flip the 5 way over and plug it back into your 4 way. ( the 5th plug or reverse power supply is now inthe second hole on the 4 way.) Turn the lights on in your truck and that will power the solenoid actuator and prevent the wheels from locking up when backing.

Forget the hassle get one of these from any auto parts store for anywhere from 8-12 bucks

http://www.delcity.net/delcity/images/photos/trailerconn/73016_tab.jpg

This place is $6.94 http://www.delcity.net/delcity/servlet/catalog?parentid=633119&page=1

T Scott
11-03-2008, 10:42 AM
Forget the hassle get one of these from any auto parts store for anywhere from 8-12 bucks

http://www.delcity.net/delcity/images/photos/trailerconn/73016_tab.jpg

This place is $6.94 http://www.delcity.net/delcity/servlet/catalog?parentid=633119&page=1

I agree:D But this method works if you are in a pinch or towing with someone else's vehicle, etc. I agree......it is easily woth the $10 bucks to get the right equipment!8p

coz
11-03-2008, 10:50 AM
I agree:D But this method works if you are in a pinch or towing with someone else's vehicle, etc. I agree......it is easily woth the $10 bucks to get the right equipment!8p

Or if you forget to take it out and go to the store and someone rips it off :mad:

Gamble
11-03-2008, 01:56 PM
On this same note guys, I have a Magnum trailer under my Prostar 209. It has the surge brakes but I have to manually click the lever if I need to back up a hill......with my new storage unit, it has a slight grade, and I have to flip the lever. Any of you ever replaced the master cylinder w/the one that does it when you put your tow vehicle in reverse? Or know if I can retrofit mine w/o replacing the whole shebang? Thanks in advance!

bturner2
11-04-2008, 09:02 AM
You can buy a reverse solenoid and convert to the flat 5 plug. The solenoid is placed between the brake line and the brakes. There are two types, one that just blocks the fluid and one that returns the fluid back to the master cylinder. The later is supposed to be better as it doesn't build back preasure but you need to have a master cylinder that is made for this version.

Gamble
11-04-2008, 10:58 AM
BT.........thanks for the help........if I'm understanding your post correctly, I'll need to change the m/c no matter which type of solenoid, right? Or, if I only need to change it if I use the latter one you're referring to. I only need to back up about 30 or so feet up a a slight grade.....so if I can do it w/o changing it.....that'd be great. Thnx in advance.

Sodar
11-04-2008, 11:06 AM
You can buy a reverse solenoid and convert to the flat 5 plug. The solenoid is placed between the brake line and the brakes. There are two types, one that just blocks the fluid and one that returns the fluid back to the master cylinder. The later is supposed to be better as it doesn't build back preasure but you need to have a master cylinder that is made for this version.

Dead on. If you have a UFP actuator, the heart of the actuator can be removed and replaced with the redesigned unit.

Gamble
11-04-2008, 11:29 AM
Thnx Cameron.......how would I know what actuator I have? Mine has the metal pin that moves/locks when you want to back up......but I don't know what type of act. I have. Thnx!

Sodar
11-04-2008, 11:31 AM
Take a picture of you actuator tongue and post it. I can help you more once I know what you have got.

Gamble
11-04-2008, 11:55 AM
cool thanks...........when I get back to the boat in the next week or so, I'll snap a photo.......thanks again!

jberylec
01-27-2009, 11:37 PM
I bought the adapter from kragen, works great! Cheap too! Backing up is a much better experience now! :-)

I remove it and my hitch when not in use, I've had a ball stolen before and that sucked! I didn't notice until the morning of a trip... needless to say, we were delayed several hours waiting for a store to open to buy a new one! ugh

Thanks guys!