The right transmission cooler
02-13-2014, 10:26 AM
#1
Senior Member
Thread Starter
The right transmission cooler
I want to add a transmission cooler to my 1010 that wasn't built with one. I know I could go to Ford and buy the original parts but... trying to do this with an aftermarket part to save a buck. I called Hayden coolers and they suggested this one. http://www.ebay.com/itm/Hayden-679-Rapid-Cool-Transmission-Cooler-for-Motorhomes-10-000-Towing-New-/331124078135?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d18887637&vxp=mtrA bit of overkill since I won't be hauling GVW quite this big but that's OK.
He said he didn't show any extra parts needed like extra fittings and adapters.
The only thing bothering me is the 3/8 pipe outlets and hoses on the cooler. My truck looks to have larger hoses and pipes, about 7/16.
Would a restriction this small cause any problems?
He said he didn't show any extra parts needed like extra fittings and adapters.
The only thing bothering me is the 3/8 pipe outlets and hoses on the cooler. My truck looks to have larger hoses and pipes, about 7/16.
Would a restriction this small cause any problems?
02-13-2014, 11:41 AM
#2
Grumpy Old Man
I don't know the specs on the OEM heat exchanger, but I would NOT install a new one that has smaller fittings than the OEM that was part of the trailer towing pkg. Bigger is okay, but not smaller.
When you get it all done, you must do a flow test to be certain that you have adequate flow through the ATF cooling system. Even with a huge heat exchanger and big fittings, you could have kinked a line or a fitting somewhere along the line. I don't know the requirements for your tranny, but the 4R100 in my 1999 SuperDuty required a minimum of one GPM flow back into the tranny after the coolers. That was also one quart in 15 seconds with the engine idling. I suspect that's the same for your tranny but I haven't looked at the specs.
When you get it all done, you must do a flow test to be certain that you have adequate flow through the ATF cooling system. Even with a huge heat exchanger and big fittings, you could have kinked a line or a fitting somewhere along the line. I don't know the requirements for your tranny, but the 4R100 in my 1999 SuperDuty required a minimum of one GPM flow back into the tranny after the coolers. That was also one quart in 15 seconds with the engine idling. I suspect that's the same for your tranny but I haven't looked at the specs.
02-13-2014, 07:05 PM
#3
Senior Member
The Dorman 918-204 which Dorman lists as a direct replacement for the oem cooler has 1/2" inlet and outlet. Plus with one of those "universal" kits, they're for old school setups with the smaller fittings in the radiator that just screw in.
Last edited by seaeagle2; 02-13-2014 at 07:22 PM.
02-13-2014, 07:32 PM
#4
Senior Member
Thread Starter
Thanks everybody. I will stay away from the 3/8 models.
Seaeagle, I had forgot that you had told me before that your Dorman model had 1/2 pipes.
That is what I'll get.
Was that lower Ford hose the only extra part you had to buy?
Probably not very expensive was it?
Seaeagle, I had forgot that you had told me before that your Dorman model had 1/2 pipes.
That is what I'll get.
Was that lower Ford hose the only extra part you had to buy?
Probably not very expensive was it?
Last edited by Daleford; 02-13-2014 at 07:32 PM. Reason: extra text
02-13-2014, 07:44 PM
#5
Senior Member
I got the Dorman cooler and it snapped right into the bracket that was already mounted on the radiator, the part number for the bottom hose is 9L3Z*7B028*G, it was around 20 bucks online. I needed a hose clamp for the upper connection, I just cut the metal part off the hose and slipped it onto the cooler and clamped it. The hardest part is you need the TRANSMISSION quick disconect tool, the FUEL/ AC tool looks real similar, but it's too thick to work.
Last edited by seaeagle2; 02-13-2014 at 07:54 PM.
02-13-2014, 08:10 PM
#6
Senior Member
Thread Starter
I got the Dorman cooler and it snapped right into the bracket that was already mounted on the radiator, the part number for the bottom hose is 9L3Z*7B028*G, it was around 20 bucks online. I needed a hose clamp for the upper connection, I just cut the metal part off the hose and slipped it onto the cooler and clamped it. The hardest part is you need the TRANSMISSION quick disconect tool, the FUEL/ AC tool looks real similar, but it's too thick to work.
Thanks again for the help.