Disc brakes on truck and drums on trailer problem

Ok, so I don't know whether or not to post this on the mechanic's area or the owner op area. Seems like the owner ops have more understanding of trucks than a lot of mechanics do. Anyways I've noticed something a little disturbing the last time it rained. I was coming up to a gas station to stop and started slowing down and the loaded trailer I was hauling started to push my truck. I actually felt the antilock brakes doing their thing. I ended up sliding a bit past the turn. This has happened before but at that time I didn't think anything of it. I was on a curve and it had just started to rain and in the middle of the curve I decided to slow down a bit and the trailer started pushing my truck into a jackknife position but was able to pull out of it before heading off into the ditch. Just thought there was oil or something causing me to slide. So my original thought was the trailer brakes need to be adjusted or they were not working properly so I had the shop I work out of check them and they said they were fine that they were self-adjusting and that the reason for the issue was that the disk brakes on my truck were working better then the drum trailer brakes were and there was nothing they could do about it. I'm thinking well this doesn't seem safe at all considering the two instances I've experienced so far. I mean if there was a car in front of me I would have hit them. What are ya'lls thoughts on this?

 

Yep definitely a learning curve. This is the first truck ive had with disk brakes. At first I thought they were great because of how well they work that is on dry ground. I mean i dont have to hardly press down on the peddle in comparison to the other trucks I've driven with drums. The other thing about my set up is i don't have a trailer brake. I could compinsate for the descrepancy if i did. They say there not that hard to add, so maybe ill do that.

 

I agree.