Bowtie03

iTrader: (4)

Ok, I'm down to the end of my swap in my 89 rcsb and I bought the -6an 3/8 Line quick disconnects for my return style 99-02 truck intake. I tried to install on the line and the fitting acts as if it's not long enough to clip over the flared end off the intake fuel line. I also learned after the fact that the two lines are different sizes. So I have two useless fittings. So my question is can someone tell me the exact parts they used to connect their truck intake fuel lines to the -6an braided lines I have on the truck going back to the tank. Help me get this thing running cuz I'm soo close lol. Thanks for helping.

Camaro Zach

iTrader: (7)

640850 3/8" feed line
640860 5/16" return line

Russell Fuel Rail Fitting Adapters - SummitRacing.com

Bowtie03

iTrader: (4)

I used that exact feed line disconnect and it's the one that will not fit the fuel line all the way to the flare.

Camaro Zach

iTrader: (7)

try putting the plastic piece on the line first and then slide the metal part of the fitting on.

It took some force (very tight seal) but I just tried it on a '99 fuel rail and it went together no problem.

Bowtie03

iTrader: (4)

Yeah, I was afraid to push too hard on that plastic piece with fear of breaking it. Thanks for trying it to see what I was talking about lol.

2 tone 02

iTrader: (8)

Are those not the fittings that are prone to popping off an causing fires that russell refused to recall?

I thought 644120 and 644110 were the new style ones?

Camaro Zach

iTrader: (7)

Those do look nice. I didn't know they existed. The locking piece threading in place looks pretty fail proof provided it doesn't back out.

As for the other style I have never had a problem. I would be willing to bet it was from them not being seated properly by the installer. It took a liberal amount of effort to get the one I have here completely seated.