Can I install a Trailer brake in a truck that didn't come with one?

yes, U can.

use air supply from park brake air tank (the better place to cut in T-fitting is in air switch manyfold area).

Controll line runs under hood. Cut in "select hi" air valve in TCV control line in foot brake valve area.

Run handvalve exaust to outdoors becouse you do not want to hear SHHHH sound every time u release trailer brake

 

need a diagram?)

 

post me e-mail.

BTW, about valves. On all valves sold worldwide I cas see European port marking.

1- supply
2- output
3 - exaust.

Tank marking

Wet tank ore supply tank - black lines
I -Rear brakes - Green lines
II. - Front brakes - Orange lines
III - Park and trailer supply tank - lines are red
IV- accessory tank
Yellow - park brake deactivation
Blue - trailer control line

 

check email box

 

Yes you can. A couple hundred bucks if you pay a shop to do it

 

use only DOT ore ECE certified fittings. There are many chenese fitting on market that may pop up under pressure.

I use made of metal push it fittings, but threaded are better.

Fittings are the critical points of air brake system.

Chenese fittings may be bad may be good, there are many makers there so I cant be ure what are of good quality, what not, that's why I prefere European ore US makers