Transmission coolant lines for FJ62 to swap with 4L60E (1 Viewer)

[PanhandleFJ]

In my swap journey I have a 2003 4L60E out of I don't know what vehicle. I'm at the stage of running rigid coolant lines from the trans up to the radiator. I have a radiator from Cruiser Corps with the connection locations in the OEM locations. Is there any advice on which coolant lines to buy? Since these transmissions came n several different years and models of vehicles. I know there won't be a made to fit situation but I'd like to use pre bent/formed lines to get me up to the radiator with minimal flexible lines. I found a set of lines from a 2003 Silverado and they come up to the passenger side and have a short (8" or so) section of rubber hose and then the push lock end after that.
What's a good approach? Or should I get straight line and bend it myself from the trans to the radiator?

 

[Meatdawg]

I have the 4l80E so not sure if the set up is exactly the same, but here is what I have. The hardline's run up from the passenger side of the trans to about 1.5'-2' of the bottom of the radiator. From there I just have soft lines with the fittings to hook up to the bottom of the radiator and hose clamps to secure them to the trans lines. No issues in 14+ years.

 

[PanhandleFJ]

I have the 4l80E so not sure if the set up is exactly the same, but here is what I have. The hardline's run up from the passenger side of the trans to about 1.5'-2' of the bottom of the radiator. From there I just have soft lines with the fittings to hook up to the bottom of the radiator and hose clamps to secure them to the trans lines. No issues in 14+ years.

Ok so soft lines that go over the flare type end and hose clamp on and then reach over to the radiator inlet and outlet? Did you have a flexible section of the hard line that was the way they were manufactured?

 

[Meatdawg]

Ok so soft lines that go over the flare type end and hose clamp on and then reach over to the radiator inlet and outlet? Did you have a flexible section of the hard line that was the way they were manufactured?

I do not think the hard lines from the transmission are flared, the soft line is just held with a clamp. Then the soft lines go to the inlet & outlet on the bottom of the radiator using the screw on fittings. I had the stock, screw on fittings attached to the soft lines by a local shop years ago.

 

[PanhandleFJ]

I do not think the hard lines from the transmission are flared, the soft line is just held with a clamp. Then the soft lines go to the inlet & outlet on the bottom of the radiator using the screw on fittings. I had the stock, screw on fittings attached to the soft lines by a local shop years ago.

The ones I bought have the push lock flared shape on both ends but they just don't reach the exact location on the radiator so I'll make up the difference with another section of some kind. I guess the only purpose of the intermediate soft line within the hard line is to give flexibility to pull the line out of the radiator is it has a push lock connection like an original Tahoe truck or other vehicles using that transmission. Thanks for your input about what you did on yours.

 

[NCFJ]

I convert the trans and the radiator to -6AN and make up hard lines. Also use a small length of rubber where the lines transfer from trans to frame so there is flex preventing the hard lines from cracking. Putting a break at the trans/engine makes any future removal a bit easier. This set up uses radiator and also additional cooler.

 

[PanhandleFJ]

I convert the trans and the radiator to -6AN and make up hard lines. Also use a small length of rubber where the lines transfer from trans to frame so there is flex preventing the hard lines from cracking. Putting a break at the trans/engine makes any future removal a bit easier. This set up uses radiator and also additional cooler.

That's really nice. I like that green color also. Thanks for posting that.