Trailering

Alright so windy will go into the trailer with absolutely no issues goes right in backing out completely different story she rams you against the wall and will not go back we used the 3 horse slant we tried with just one door opened to start then ended up opening both then ended up just turning her around and letting her go off forward which still took some time to get her out. What would you suggest she knows the back que in hand with and without a crop like tapping her chest or leg but in the trailer she won't respond to any pressure

I would suggest that she needs to learn back up better in general.

If she has a stall practice there first as it is a confined space that she is comfortable with. Back her out of her stall door and practice this. Use her lead line or w hip on her chest if she will not.

Then feed her in the trailer, all the time and do the same things to get her out of it.

Of course she needs to know back up first and well.

I agree with Alex. Work on it away from the trailer first. Get her to where she will go forward and backward one step at a time and you have control of all 4 feet as a whole and individually, get her to where you can pretty much rock her back and forth one foot at a time. Try backing her into her stall, in and out of a wash rack, stocks, whatever you have where it is a 'confined' but safe area. We start trailer training as weanlings with an elevated plywood bridge and 2 tarp walls. It's something that they can't get hurt if they blow, but teaches the idea of getting in and out of a confined space and the slight elevation teaches them to expect the drop down out of a trailer if they are loaded in one without a ramp. Once you have total control of her feet, go back to the trailer.

When you get to the point of going back to the trailer, only let her put one foot in, make her back off. Repeat...one foot in, one foot out, progress to getting her fronts in, then back her off...repeat.

She already has backing down pact out of the trailer and we don't have enclosed areas to practice that no wash racks just a cement slab with a hitching post and her pen is just 4 pipe fences with a lean to sorta thing the trailer is the only time she is in a enclosed area and the only time she won't willin back with voice commands or slight pressure

Does your horse go into the trailer without you leading her? If not then you need to get that working... teach her to go into the trailer whilst you stand at the back of it. Then once she does that you start working on bringing her out of the trailer. First she will probably turn and come out but soon you should be able to back her out with the rope. If not then I agree with the other posters you have to be able to back you horse at a distance when you are behind her.
So cue her with the rope when you are beside her and slowly move towards her back and use a fence if you need to to keep her straight.

Yes she will go in without me she loves going in coming out is her problem. When I am leading her I can stop and walk backwards and she will back unless you are by her hip in which she has been taught to move her hind end and turn and face you ( not by me by previous owner) once in the trainer she becomes a pushy nag who completely forgets ground manners even with a crop. Once out of the trailer she will back with no problem it's just in the trailer :/

She needs to learn to back a little better off of little to no pressure.

And you need to practice backing her off of some sort of platform. Maybe set up a pallet with a good sturdy peice of ply wood over it (obviously nail it on good). Start by asking her to put one foot on, and backing off, one foot on, backing off, then two, then three, then all four. Spend as much time on a "soft response" as you have too...so if it takes a few sessions to get her to step up and back off softly with only one foot, then do it...you need to build her confidence, not rush it. When she gets good at that exercise, then start all over using the trailer...one foot in, back off, two feet in, back off, and so on and so forth.

She is obviously very insecure about stepping OFF the trailer, simply because she can't see very well to judge the distance. Even with a ramp, some horses don't like backing off the trailer, because it's a small cramped space and they can't see behind them very well coming off.

Ya her previous believes in the method of with you have pressure or you don't no in between and she has done lots of ground work but this was her first time in a trailer in a long time so the platform might be doable if I can find the bridge we use for the trail shows

Does your trailer have a step down/up instead of a ramp? Like a stock trailer? I would try what mom2pride said. When I was trailer breaking my filly I taught her to back with little pressure on her chest and telling her back up, I did this pretty much where ever I wanted to. When we got her in the trailer she refused to back out and would try and rush forward or turn around. The trainer I was working with did not let her turn around and insisted she back up. He told me to do the same. When she got close to the edge I slowed her a little and told her "easy, step" as a little bit of a warning. She hated the step down as it feels they are stepping off the face of the earth. She would soon jump down with both back feet then back out all nice and quiet. I just kept pressure on her and did baby steps out the back of the trailer, each step back was rewarded, and soon I started asking for a few more steps each time. Now days she loads and unloads like a little lady. I agree with working her in a confined space if you can.

Has she had a bad experience? From what you've posted, it sounds as if she has

Some horses get EXTREMELY nervous about backing out of a trailer (my mare that I usually haul in the last slant will tip toe all the way backwards if I load her in the 1st or 2nd slant of the trailer)

Get her comfortable going out of the trailer forwards, THEN work on getting her to back out

Do you use a vocal command warning her that there's a step coming? If not, start doing it - that way she knows and isn't "falling off the face of the earth" which could be her train of thought when the ground disappears out from underneath her or she starts down the slope of the ramp