Where is everyone #5

JIC is a 37* flare fitting. 389 "should" have weatherhead 45* flare swivels on most brake hoses. Cheaper to buy the hose from Peterbilt than it is to make them, that is if you can find anyone that stocks the fittings. I ended up buying 1/2 & 3/8 fittings to have on hand if I needed a hose made up.

 

Yeah they are all 45 flare swivels.... Could not find anything online.. The nearest parts shop is 2.5 hours away from me and i sure as hell not driving in there for a 10 dollar hose... I have all my own hose and crimping tools to build them but not the oem fittings... Cant i just crimp a threaded end with hose barb and brass ferrule onto the hose and thread directly into the brake chamber port itself? It doesnt actually need to be routed thru a 45* fitting right? Those are just used for convience of attaching the hose to keep it from kinking im guessing? Why do they build all these lines with multiple fittings on each end? Seems over complicated and gives you more #### to break off with a wrench

 

Yes sir!!
That's the ticket right there. Good looking machine..

Even has a 350hp which seems to be my lucky number.. lol

 

That's sharp. Looks like a clean desert truck.

I keep a 100' roll of 3/8" rubber air hose, and plenty of these type ends. I know some here beech about those quick attach ends, but I've never had issues with one, and have used literally thousands.

Makes it easy to make the hose exactly whatever length i need it so I can route it cleanly.

Routing them upwards with a 45* keeps them less succeptible to getting broken by gators or road debris. I've made tons of service calls for broken brake chamber hoses, usually because the lines came straight out of the middle of the chamber straight.

 

That new torque arm really tightened it up. Going over rough spots it would shimmy side to side a bit. Doesn't do that anymore

 

Got to go fishin yesterday. Neither of my fuel seding units worked, so I wanted to change them before connecting the new fuel lines. Left side tube was gone.

That was a bugger finding it and getting it to the filler neck end of the tank. Had to bend a brazing rod, and finally got lucky and hooked it. Nice to have working gauges though.

 

@D.Tibbitt JIC stands for Joint Industrial Council. Mostly used on hydraulics. About the only place you'll see those fittings on a truck is power steering, wet kit and possibly transmission cooler lines.

 

Heck if you have hose and crimping tools -
Best price on 3/8:
5-NEW Weatherhead Eaton 33806P-406 338 P Series Crimp Fitting 3/8 Air Brake | eBay
And Imperial Supplies has 1/2"

I considered just going with straight fittings on those thread together ends with the spring shield, but that gets expensive too. Like I said, it was cheaper and easier for me to just order the dynacraft OE hoses . The rubber is good quality unlike the cheap chinese hose (TRP junk) that cracks in 6 months.

 

@D.Tibbitt

They all beat me to the answer. 37⁰ or 45⁰ just don't use tape or paste. Actually a small dab of never seize on threads can be your friend years down the road.

 

Thanks for the help gents