Questions about Hose Fittings

So I'm getting rid of the plastic clip fittings and any other stupid fluid related parts on my 87 4.0 aw4 xj. Also looking at doing a remote tranny filter and started looking at hose and an fittings for the system so I was wondering how much more reliable hose fittings are over barbed fittings and hose clamps which are the cheap easy way to go but those pretty anodized fittings and stainless braided lines have caught my eye especially the black/gold ones jegs got on sale which would match my tan and black jeep and I figure give me about 50hp more at least. But if I don't completley convert all the fittings like on the tranny cooler and weld an's to the fuel rail, pump and such then I figure theres no point only doing a few. So probobly just lookin at converting the tranny 14mm fittings to an onto the hard line and doin a remote filter and barbbed fittings off everything else but what do most of you guys run and what are your opinions?
Also this xj is just a DD light wheeler which I'm makin just to be reliable and capable of traveling long distances in comfort and without any problems (knock on wood)

Lots of good info on fittings here - http://www.naxja.org/forum/showthread.php?t=1051867&highlight=fuel+line

That is fuel line but the same sizes work for the trans. Also, there is a link to a writeup that shows how to use a hard line adapter to completely rid yourself of the snap-lock connectors.

highly recommend AN fittings to make things nice and safe, ive done trans and fuel rail on my 90. the fuel rail isnt easy, so i swapped to a H.O. rail with an adapter bracket.


for the trans, if you want a stock-ish approach, with the cooler in the same spot, use oem tubing adapters on the stock hardlines. i moved my cooler to my rear window JS style, so i used bulkhead fittings on the rear floor, and 4 hoses.

xcm said:

highly recommend AN fittings to make things nice and safe, ive done trans and fuel rail on my 90. the fuel rail isnt easy, so i swapped to a H.O. rail with an adapter bracket.

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Hm. So the HO fuel rail has the same injector spacing, just different mounting screw placement? That makes some sense...

What year rail did you use?

correct, you can see the mounting differance here http://img227.imageshack.us/i/fuelrail3.jpg

i used a H.O. rail, 92-95?ish? the adapter bracket obviously isnt ideal, i will eventually do a H.O. head/header/99+intake/psc power steering box swap after i pass smog.