Towing & Trans Cooler
 

Working on redoing the cooling system on my 70 c1500. New radiator and water pump but thinking of doing a transmission cooler as well. Currently it’s a 350/350 but hoping to do a 400/4l80e to be able to tow my 55 Chevy and boat.

Wondering what’s a good transmission cooler to install. Prefer stacked design as it seems like a better idea especially being in Texas

Re: Towing & Trans Cooler
 

On my LS/4L60E swap combos I always use a B&M stacked plate trans coolers.
Pic of my current project 80 Camaro with a LS3/4L60E swap. I use -6 SS for cooler lines. The cooler has NPT inlets and outlets so I can adapt the -6 lines.

Re: Towing & Trans Cooler
 

Thanks for the info. By chance do you have a model number for the b&m?

Re: Towing & Trans Cooler
 

I used the Derale 40 Row stacked plate cooler (54006) with the -6an fittings on a k30 Squarebody with a built 700r4. 67,000 BTU rating, it was one of the biggest ones I could find.

Pricey but definitely worth it in my opinion, I originally had a Hayden 689 which when warm out and towing or climbing the hill to my house the transmission temps would get pretty high. After switching to the Derale I never remotely had an issue.

Re: Towing & Trans Cooler
 

No part number but I just measured it. It's about 11" wide and about 10" tall

Re: Towing & Trans Cooler
 

I use the B&M Hi-Tek cooler with a fan
They make 2 sizes.
I like the auto on at 170 degrees too.
They are not cheap, but way cheaper than a trans rebuild.
I see that others are making something similar.
This keeps my trans cool. If it starts to heat up, I just flip the switch from auto to on.

Jegs makes there own part number 555-60389
Summit racing makes one too.


I installed the smaller one due to space concerns.

Re: Towing & Trans Cooler
 

I always see two options offered up every time for the 4L80e:

1. Grab a transmission cooler from a Ford F-250/350 (They are HUGE)
2. Tru-Cool 40K transmission cooler.

Re: Towing & Trans Cooler
 

I run a stack cooler placed flat under the drive seat area with a puller fan and tstat switch to drive a relay. This allows for quick warm up and cooling when required. I also use a indicator lamp connected to the fan power line so I know the fan is running and fuse did not blow. Contrary to general instructions, i pass through the stack before running into factory radiator cooler. This for better warm up and if tranny starts running warm I precool so I don't increase my coolant temps as much.
Edit: as for brand, they are mostly rebranded Chinese anyway. Find something on ebay or the best of the best Setrab.

Re: Towing & Trans Cooler
 

Thanks! Will get one ordered