Howdy all,

I apologize if this has been asked before but a search (here) didn't produce any results!

There seems to be a fair amount of people installing the 4R100 fluid bypass/check valve, fittings and 3/8" cooler lines on E4OD's.
The 4R100 (3/8" fittings) bypass seems readily available and fairly inexpensive.

I don't have a integral radiator trans cooler in my OE Radiator........(seems they didn't put auto-transmissions in 55 F-600's) So, I'll will use a stand-alone (big) DERALE remote cooler/fan with an inline filter etc.......

There's also a check valve in the return fitting of E4OD's that is there to (presumably) prevent fluid siphoning out of the TC and I assume that the 4R100 bypass & banjo fittings do the same.

Has anyone here done the 4R100 bypass and changed to 3/8 lines and fittings in an E4OD ? Is it worth doing it? (Do we really even need the bypass?) I haven't plumbed anything yet, and since I haven't even made up all the cooler lines, I can go either way.....It makes sense to use larger lines in any case......

Thanks,

Rick

 

Ok,

Got all the questions answered!

Thanks to all that replied!