My 2000 came with the radiator that doesn't have transmission cooling and I need to replace it due to a recently developed leak. I know most will say get the radiator with tranny cooling as an upgrade but I don't think I need it.

I already have the 6.0 cooler and do not tow heavy. During the cooler months I have trouble getting the tranny up to what I believe is the recommended operating temp of 150 degrees to keep moisture to a minimum. For example last night I went for a drive with air temps in the 50's and the tranny temp as measured on torque pro and pillar gauge never got over 140.

During the summer even towing a small tractor with implements, or my boat the temps usually run around 180 unless it's one of those late summer days in the 100's or have to spend time in traffic, then might push closer to 200.

All that said to say I don't want anymore cooling, as it doesn't seem necessary and I like it where it is.

Does anyone know of a part number for a radiator without internal tranny cooling? All the ones I'm finding on the interweb have the hook ups. I would just buy one with tranny hook ups and cap them but then I would be losing some cooling capacity.

Thanks,

 

My E-99 has a newer radiator in it from the OP and the holes are just left open. I wish they had been plugged somehow but they were not and I haven't messed with it.

 

Probably be cheaper to buy the updated radiator also. Just plug the holes if you want.

 

Chet, I may just have to go that way.

Will find some caps for the Tranny cooler ports. Guess If I ever start towing heavy I can just add some hoses and upgrade.

 

I swapped the hard lines to run the radiator cooling on my 99, works much better.

I would think so too. I did the upfit on my truck, required I think three different lines, a hose barb fitting and some rubber hose.

@AllaboutMPG

I encourage you to check through this thread on the benefits and discussion with @Mark Kovalsky
regarding the matter with my truck.

Keep in mind that my truck is a V10, so it came with a cooler slightly larger than a 7.3 but smaller than the 6.0 cooler you have.

https://www.ford-trucks.com/forums/1380248-lettuce-discuss-4r100-transmission-temps-mark-k-i-request-your-input-2.html

 

Thanks for the link Bently. That was a good read. Puts my mind at ease about the lower temps since Mark said anything over 100 on colder days is ok.

So I like my numbers and will probably just go with newer Radiator and not plumb the tranny unless I start seeing higher temps when towing. It will be nice to have the option.

 

Also watch your temperatures at low speeds, especially backing with a load. That's where a lot of early '99 transmissions burned up before Ford retrofitted the radiator cooler.

 

Will do and thanks for continuing to bring your knowledge here to help us.

 

Paul.


I've got a few rads thru Primeauto. They're good quality and very affordable. Packaging not so good, but worth an eye.

Denny (I appreciate Mark Too) (He's my trucks boyfriend)

 

Primeauto looks like a wholesale outfit in the northeast.